Hello everybody!
I have a big problem with my Koha installation for the small library in my primary school. After an update it does not run any more. With my technical experience I am now at the end and hope you can help me. I hope I got the right mailing list.
What is used?
Operating System: Ubuntu Server 18.04 LTS
Koha: 18.05.01 stable
What's the matter?
Every few weeks I upgrade Ubuntu and Koha, if something is pending. I recorded the last upgrade yesterday, but since then I can't use Koha anymore.
When calling the website I get the following error message:
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /index.html.
Reason: Error reading from remote server
A matching error message seems to be in the Plack-error log:
Error while loading /etc/koha/plack.psgi: Can't load application from file "/usr/share/koha/api/v1/
app.pl": [JSON::Validator] GET
http://json-schema.org/draft-04/schema == Connection refused at /usr/share/perl5/JSON/Validator.pm line 274.
Compilation failed in require at (eval 1524) line 1.
Child process 15572 exited with status 111
Can you help me?
Thank you and many greetings
Sven