'Where is log file of openproject?

I have Openproject in my debian 9 server. I couldn't find log file for openproject.

/var/log/openproject is empty

I tried openproject logs --tails

error

cat: '/var/log/openproject/*.log' : no such file or directory

Please help me

Thank you

debian openproject

Solution 1:^[1]

cat: '/var/log/openproject/*.log' : no such file or directory

This means that your OpenProject server probably isn't running. Please try to start the server first.

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Solution	Source
Solution 1	fraber