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    <p>Hi Lee,</p>
    <p>I have not observed any specific issues with the RIOXX2 plugin on
      EPrints 3.4.3, certainly if you have applied the appropriate
      patches for known issues in 3.4.3.&nbsp; As you are upgrading from 3.3
      to 3.4 it is likely to be an issue related to this rather than a
      specific 3.4.3 issue.&nbsp; <br>
    </p>
    <p>Have you modified any of the RIOXX2 plugin configuration files
      (e.g. zz_rioxx2.pl)?&nbsp; I will try a quick test to see whether I can
      reproduce the problem you are seeing on a 3.4.3 instance, (that
      was 3.4.3 from its inception rather than upgraded from an earlier
      version).&nbsp; It is possible that a change to your configuration
      could hit an unknown bug in 3.4.3 that was not a problem in
      earlier versions of EPrints.&nbsp; Therefore, this issue would likely
      only effect you.</p>
    <p>I can see in the error message reference to <span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::Config::orca</span></span>,
      which presumably is the name of your repository.&nbsp; This further
      suggests it may be an issue somewhere in your configuration.&nbsp; I
      will need to look further through the apache error log listing you
      provided.&nbsp; So I can zero in on where the problem is likely to be.</p>
    <p>Regards</p>
    <p>David Newman<br>
    </p>
    <div class="moz-cite-prefix">On 12/01/2022 12:01, Lee Paton via
      Eprints-tech wrote:<br>
    </div>
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          <strong>CAUTION:</strong> This e-mail originated outside the
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          <p class="p1">Hi<span class="apple-converted-space">&nbsp;</span></p>
          <p class="p2"><o:p>&nbsp;</o:p></p>
          <p class="p2"><o:p>&nbsp;</o:p></p>
          <p class="p1">I’ve just upgraded our development repository
            from eprints 3.3.12 to 3.4.3 using the rpm (and default
            flavours tar file) migrating the changes across as in
            <a class="moz-txt-link-freetext" href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.eprints.org%2Fw%2FUpgrading_3.3.12%252B_to_3.4&amp;data=04%7C01%7Ceprints-tech%40ecs.soton.ac.uk%7Cd644f22815b34a6c6cea08d9d5c4fafe%7C4a5378f929f44d3ebe89669d03ada9d8%7C0%7C0%7C637775864258318708%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=nSBZS16zGlawsZytKdXeTke8PMAXrbmbODgHGGj2NbY%3D&amp;reserved=0" originalSrc="https://wiki.eprints.org/w/Upgrading_3.3.12%2B_to_3.4" shash="rCrRg8u/8+QtEVxKusD7GScZkgtlT8BOTCKSeBKBZVA3WL06q1b4d4MVjg7wE9fILCf5fJZ4QwHew1RtuTTfN4SMhyiQ+YdeRBt7f36Bu//NBEZOBllo/DkkC6zFJteXIf9yYC9k3XvGGNVqmVF1iGU9dgERK+8SBRwmU13HBB4=">https://wiki.eprints.org/w/Upgrading_3.3.12%2B_to_3.4</a> and
            applying patches/changes as described at
            <a class="moz-txt-link-freetext" href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.eprints.org%2Fw%2FEPrints_3.4.3%23Known_Issues&amp;data=04%7C01%7Ceprints-tech%40ecs.soton.ac.uk%7Cd644f22815b34a6c6cea08d9d5c4fafe%7C4a5378f929f44d3ebe89669d03ada9d8%7C0%7C0%7C637775864258318708%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=LEoLD5uCqiSPdBtUAnm6%2BHf%2BudeOptoVNqLYt661TSs%3D&amp;reserved=0" originalSrc="https://wiki.eprints.org/w/EPrints_3.4.3#Known_Issues" shash="YlTpEcXc1SSikAN2ndofuhr41zZaXzE15lEA7BJSj7B+JeoCirySXE1LWLnU9SZYdEHADcVhn+TzDrDAUHv6U/P3zE2VSbFrpYpCwZOPzYsrU7nk1G0BDtU39L4gX9xzGP6GS68y/BKzdE/O4tm07RUijEdElIOMlA2KHLAXGLM=">https://wiki.eprints.org/w/EPrints_3.4.3#Known_Issues</a>. I’ve
            hit an issue with the RIOXX2 plugin, whenever I try to edit
            an item I get a “500 internal server error” before anything
            is rendered in the browser. The apache log shows</p>
          <p class="p2"><o:p>&nbsp;</o:p></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">[Tue Jan 11
                16:34:41.454113 2022] [:error] [pid 2830] Can't call
                method &quot;isa&quot; on an undefined value at (eval 222) line
                8.\n at (eval 222) line 8.\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::Config::orca::__ANON__('repository',
                'EPrints::Repository=HASH(0x5556a03f2fd0)', 'value',
                'en', 'dataobj', undef, 'problems',
                'ARRAY(0x55569c19d238)', 'field', ...) called at
                /usr/share/eprints/perl_lib/EPrints/Repository.pm line
                1800\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::Repository::run_trigger('EPrints::Repository=HASH(0x5556a03f2fd0)',
                14, 'field',
                'EPrints::MetaField::RIOXX2=HASH(0x5556a37d26a8)',
                'dataobj', undef, 'value', 'en', 'problems', ...) called
                at /usr/share/eprints/perl_lib/EPrints/MetaField.pm line
                2647\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::MetaField::validate('EPrints::MetaField::RIOXX2=HASH(0x5556a37d26a8)',
                'EPrints::Repository=HASH(0x5556a03f2fd0)', 'en', undef)
                called at
                /usr/share/eprints/lib/plugins/EPrints/MetaField/RIOXX2.pm
                line 55\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::MetaField::RIOXX2::validate('EPrints::MetaField::RIOXX2=HASH(0x5556a37d26a8)',
                'EPrints::Repository=HASH(0x5556a03f2fd0)', 'en') called
                at
/usr/share/eprints/lib/plugins/EPrints/Plugin/InputForm/Component/Field/RIOXX2.pm
                line 99\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::Plugin::InputForm::Component::Field::RIOXX2::validate('EPrints::Plugin::InputForm::Component::Field::RIOXX2=HASH(0x5...')
                called at
                /usr/share/eprints/perl_lib/EPrints/Workflow/Stage.pm
                line 206\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::Workflow::Stage::validate('EPrints::Workflow::Stage=HASH(0x5556a37aac50)',
                'EPrints::ScreenProcessor=HASH(0x5556a37c37d0)') called
                at
                /usr/share/eprints/perl_lib/EPrints/Plugin/Screen/EPrint/Details.pm
                line 302\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::Plugin::Screen::EPrint::Details::render('EPrints::Plugin::Screen::EPrint::Details=HASH(0x55569e6d7640)',
                'ep_eprint_view_0') called at
                /usr/share/eprints/perl_lib/EPrints/Plugin/Screen/EPrint/View.pm
                line 199\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::Plugin::Screen::EPrint::View::render('EPrints::Plugin::Screen::EPrint::View=HASH(0x5556a37c86a0)')
                called at
                /usr/share/eprints/perl_lib/EPrints/ScreenProcessor.pm
                line 420\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">EPrints::ScreenProcessor::process('EPrints::ScreenProcessor',
                'session', 'EPrints::Repository=HASH(0x5556a03f2fd0)',
                'template', undef, 'url', '/cgi/users/home') called at
                /usr/share/eprints/cgi/users/home line 43\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">ModPerl::ROOT::ModPerl::Registry::usr_share_eprints_cgi_users_home::handler('Apache2::RequestRec=SCALAR(0x5556a3800c70)')
                called at
                /usr/lib64/perl5/vendor_perl/ModPerl/RegistryCooker.pm
                line 207\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">eval {...}
                called at
                /usr/lib64/perl5/vendor_perl/ModPerl/RegistryCooker.pm
                line 207\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">ModPerl::RegistryCooker::run('ModPerl::Registry=HASH(0x5556a37d4928)')
                called at
                /usr/lib64/perl5/vendor_perl/ModPerl/RegistryCooker.pm
                line 173\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">ModPerl::RegistryCooker::default_handler('ModPerl::Registry=HASH(0x5556a37d4928)')
                called at
                /usr/lib64/perl5/vendor_perl/ModPerl/Registry.pm line
                32\n\t</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-family:&quot;Courier New&quot;">ModPerl::Registry::handler('ModPerl::Registry',
                'Apache2::RequestRec=SCALAR(0x5556a3800c70)') called at
                -e line 0\n\teval {...} called at -e line 0\n</span></span><span style="font-family:&quot;Courier New&quot;"><o:p></o:p></span></p>
          <p class="p4"><span style="font-size:9.0pt;font-family:Helvetica"><o:p>&nbsp;</o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-size:9.0pt;font-family:Helvetica">If I
                disable the plugin the page renders successfully without
                the rioxx2 tab, if I disable the following:</span></span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
          <p class="p4"><span style="font-size:9.0pt;font-family:Helvetica"><o:p>&nbsp;</o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-size:9.0pt;font-family:Helvetica">$c-&gt;{plugins}{'InputForm::Component::Field::RIOXX2'}{params}{disable}
                = 1;</span></span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
          <p class="p4"><span style="font-size:9.0pt;font-family:Helvetica"><o:p>&nbsp;</o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-size:9.0pt;font-family:Helvetica">in my
                local archives zz_rioxx2.pl the edit item page displayed
                but links to License ref field, Accepted Date and
                Project are only rendered as text and not a full link,
                I’ve checked that all the plugin files are where they
                should be and have even removed and reinstalled the
                RIOXX2 plugin and the internal server error still
                happens</span></span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
          <p class="p4"><span style="font-size:9.0pt;font-family:Helvetica"><o:p>&nbsp;</o:p></span></p>
          <p class="p4"><span style="font-size:9.0pt;font-family:Helvetica"><o:p>&nbsp;</o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-size:9.0pt;font-family:Helvetica">Has anyone
                come across something like this before?</span></span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
          <p class="p4"><span style="font-size:9.0pt;font-family:Helvetica"><o:p>&nbsp;</o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-size:9.0pt;font-family:Helvetica">Thanks</span></span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
          <p class="p4"><span style="font-size:9.0pt;font-family:Helvetica"><o:p>&nbsp;</o:p></span></p>
          <p class="p3"><span class="s1"><span style="font-size:9.0pt;font-family:Helvetica">Lee</span></span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
          <p class="MsoNormal"><span style="font-size:11.0pt"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><span style="font-size:11.0pt"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">Lee
              Paton</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">Senior
              Server Engineer / Uwch Beiriannydd Gweinyddion</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">University
              IT Service / Gwasanaeth TG y Brifysgol</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">Cardiff
              University / Prifysgol Caerdydd</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">39-45
              Park Place / 39-45 Plas y Parc</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">Cardiff
              / Caerdydd</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">CF10 3BB</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white"><span style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB">Tel /
              Ffôn: +44 (0)29 2087 0440</span><span style="font-size:11.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
          <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-GB">Email
              / E-bost: <a class="moz-txt-link-abbreviated" href="mailto:PatonL@cardiff.ac.uk">PatonL@cardiff.ac.uk</a></span></p>
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