After OJS 3.0.2 to 3.1 upgrade cannot delete a submission

Hi All,

As in the subject, neither admin nor user can delete a submission. See the screenshot. Any ideas?

https://screenshots.firefox.com/ktgwpwyNLK5rC0Ys/ojs.zut.edu.pl

Hi @Piotr_Blaszczyk,

When you see a mysterious error message like that, I would suggest checking your web server’s error log for details.

Best,
Amanda Stevens
Public Knowledge Project Team