Can not delete submission in OJS 3.1

[eddoff]

Than you for your answer @ajnyga!
Since I could not see any errors / warnings in the log when just “normal” errors were listed, I added Strict and Deprecated.

We think that this problem might arise from the fact that we are using PHP 5.6.0 and not >= 5.6.32, as pointed out here:

Ojs 3.1 upgrade issue

Hi. My version of php is 5.6.26. But when I try to delete an article from tasks, the system writes this error: “An unexpected error has occurred. Please reload the page and try again.” What is it can be? (OJS 3.1.0.1) [01] [02]

We will now transfer OJS from our Windows server to a Linux server with PHP 7. We are hopeful that the transfer will solve this, other errors and slow loading pages.