https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=31501 --- Comment #10 from aeisjean@gmail.com --- This is what I found at the plack-error.log Error while loading /etc/koha/plack.psgi: Can't load application from file "/usr/share/koha/api/v1/app.pl": Can't locate JSON/Validator/Schema/OpenAPIv2.pm in @INC (you may need to install the JSON::Validator::Schema::OpenAPIv2 module) (@INC contains: /usr/share/koha/lib /usr/share/koha/installer /usr/share/koha/lib/installer /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.30.0 /usr/local/share/perl/5.30.0 /usr/lib/x86_64-linux-gnu/perl5/5.30 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.30 /usr/share/perl/5.30 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base /var/lib/koha/cvsumain/plugins) at /usr/share/koha/lib/Koha/REST/V1.pm line 25. -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.