[OJS 3.2.1-1] Loader spins endlessly and 500 Internal Server Error for Fetch-Grid

Application Version: OJS 3.2.1-1

I installed OJS for the first time and followed the instructions. After creating an admin and logging in for the first time, all I see is a loader that spins endlessly.

The Network-Tab tells me that there are two 500 Internal Server Errors, both starting with “fetch-grid”.

I don’t know how to debug this kind of problem. Can someone help me?

Logs:

87.245.109.31 - - [16/Sep/2020:19:31:35 +0200] “GET /index.php/index/ $$$call$$$/grid/notifications/task-notifications-grid/fetch-grid?_=1600277495107 HTTP/1.1” 500 980 “http://ojs.philosophie.ch/index.php/index/admin/contexts” “Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0”

87.245.109.31 - - [16/Sep/2020:19:31:35 +0200] “GET /index.php/index/ $$$call$$$/grid/notifications/task-notifications-grid/fetch-grid?_=1600277495107 HTTP/1.1” 500 980 “http://ojs.philosophie.ch/index.php/index/admin/contexts” “Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0”

Hi

The best way to analyze the 500 error is by reading the webserver error log.