Submissions not loading after upgrade to php7.2

Hi, I have upgraded the php version from 5.6 to 7…2.
Submission (my queue, all active, archives) are not loading.
The error log is empty but the access log shows:
195.213.13.103 - - [30/Jan/2020:11:38:08 -0800] "GET /ojs/index.php/teach_anth/$$$call$$$/grid/submissions/assigned-submissions/assigned-submissions-list-grid/fetch-grid?=1580413086153 HTTP/1.1" 500 568 “https://www.dev.teachinganthropology.org/ojs/index.php/teach_anth/submissions” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36”
Developer tools error:
jquery.min.js:4 GET https://www.dev.teachinganthropology.org/ojs/index.php/teach_anth/$$$call$$$/grid/submissions/assigned-submissions/assigned-submissions-list-grid/fetch-grid?
=1580413086153 500 (Internal Server Error)

I have changed the database driver to mysqli in config, and also applied this patch:
https://github.com/pkp/pkp-lib/commit/30ec68f59917a605aea59e56e53bc0d0ced743c1

Please could you advice me?

Hi @elibugler,

What version of OJS are you using? (Please include this in your posts.)

Regards,
Alec Smecher
Public Knowledge Project Team

Hi sorry that’s OJS 3.0.1.0

Hi @elibugler,

I’d suggest upgrading to a more recent OJS release – that’s pretty old. Since it looks like you’re getting a 500 response from your server, you’ll find more information about the problem you’re encountering by looking in your PHP error log.

Regards,
Alec Smecher
Public Knowledge Project Team

Yes, well ok, We did try that last year and ran into problems … So now we are stuck with outdated php and outdated OJS…

Hi @elibugler,

Getting stuck with an installation of OJS that you can’t upgrade is a problem you’ll need to solve sooner or later… I’d suggest working further on that.

Regards,
Alec Smecher
Public Knowledge Project Team