Hi Timo,
Sorry a lot for the delay. I didn’t forget about you… it’s only that I’m a bit stuck.
I asked PKP for help. Hopefully they will answer between today and tomorrow.
Please, post your advances, if any.
With the info you posted, the only thing I found relevant to dig further is the 500 error due a missing getId() function. This is the only issue I found about this same error:
As you can see, in this post, the error is preceded by some warnings due ojs is unable to find files.
Do you have any warnings in your log?
Cheers,
m.