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Message: #06912

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[EP-tech] Failed to find workflow: file.default

Hi,

I recently migrated an eprints server from version 3.3.7 to version 3.3.15 and when I go to Manage records -> Files and click View on one of the files I get this error:
EPrints System Error
Failed to find workflow: file.default

This is what I found in apache logs:
------------------------------------------------------------------
---------------- EPrints System Error ----------------------------
------------------------------------------------------------------
Failed to find workflow: file.default
------------------------------------------------------------------
 at /usr/share/eprints3/perl_lib/EPrints/Workflow.pm line 161.
        EPrints::Workflow::new("EPrints::Workflow", EPrints::Repository=HASH(0x558c15fabf88), "default", "item", EPrints::DataObj::File=HASH(0x558c16b95e08), "STAFF_ONLY", ARRAY(0x558c16b6c2b8), "processor", EPrints::ScreenProcessor=HASH(0x558c16d59ff8), ...) called at /usr/share/eprints3/perl_lib/EPrints/Plugin/Screen/Workflow.pm line 197
        EPrints::Plugin::Screen::Workflow::workflow(EPrints::Plugin::Screen::Workflow::Details=HASH(0x558c16b9a4b0)) called at /usr/share/eprints3/perl_lib/EPrints/Plugin/Screen/Workflow/Details.pm line 116
        EPrints::Plugin::Screen::Workflow::Details::render(EPrints::Plugin::Screen::Workflow::Details=HASH(0x558c16b9a4b0)) called at /usr/share/eprints3/perl_lib/EPrints/Plugin/Screen/Workflow/View.pm line 172
        EPrints::Plugin::Screen::Workflow::View::render(EPrints::Plugin::Screen::Workflow::View=HASH(0x558c16b8fe50)) called at /usr/share/eprints3/perl_lib/EPrints/ScreenProcessor.pm line 377
        EPrints::ScreenProcessor::process("EPrints::ScreenProcessor", "session", EPrints::Repository=HASH(0x558c15fabf88), "template", undef, "url", "/cgi/users/home") called at /usr/share/eprints3/cgi/users/home line 25
        ModPerl::ROOT::ModPerl::Registry::usr_share_eprints3_cgi_users_home::handler(Apache2::RequestRec=SCALAR(0x558c1649a6f0)) called at /usr/lib/x86_64-linux-gnu/perl5/5.22/ModPerl/RegistryCooker.pm line 207
        eval {...} called at /usr/lib/x86_64-linux-gnu/perl5/5.22/ModPerl/RegistryCooker.pm line 207
        ModPerl::RegistryCooker::run(ModPerl::Registry=HASH(0x558c16bfd268)) called at /usr/lib/x86_64-linux-gnu/perl5/5.22/ModPerl/RegistryCooker.pm line 173
        ModPerl::RegistryCooker::default_handler(ModPerl::Registry=HASH(0x558c16bfd268)) called at /usr/lib/x86_64-linux-gnu/perl5/5.22/ModPerl/Registry.pm line 32
        ModPerl::Registry::handler("ModPerl::Registry", Apache2::RequestRec=SCALAR(0x558c1649a6f0)) called at -e line 0
        eval {...} called at -e line 0
[Tue Oct 31 06:30:25.401013 2017] [:error] [pid 6269:tid 140362561611520] EPrints::abort()\n

I couldn't find much about this error, does anyone know how to fix this?