Workflow stage was not specified

Describe the issue or problem
When I click on Add Reviewer and give all details, i get “workflow stage was not specified”
Please tell us what happens and what you expected to happen.

Steps I took leading up to the issue
I checked the roles for the user who is to assign reviewer, journal manager role is there. i tried to find some clue in browser console but in vain

What application are you using?
ojs 3.2.1.4

Additional information
Please add any screenshots, logs or other information we can use to investigate this problem.


This error appears when i press Add Reviwer… The server has been shifted to ubuntu and cloudflare https also applied… Any clue please

Hi,
The same error occurs when I decline the submission. The following is the complete error message shown in browser console:

{"status":false,"content":"A workflow stage was not specified.","elementId":"0","events":null}

Any help is appreciated @asmecher

Hi @asrarahmadehsan @asmecher
After moving our OJS 3.4.0-8 portal to a new (linux, PHP Version 8.3.16) server, I got the same error when editors try to add reviewers. We get 500 internal server on console, but no error is recorded on php error log. On browser developer tool, I get a very similar error

{"status":false,"content":"A workflow stage was not specified. [https:\/\/www.adlitipbulteni.com\/index.php\/atb\/$$$call$$$\/grid\/users\/reviewer\/reviewer-grid\/update-reviewer]","elementId":"0","events":null}

But refreshing the pages shows that the reviewer has been assigned with empty parameters such as no due date, no assigned review files, no assigned review form. We can later manually edit the assigned reviewer, and change date, file and form, and save it.
Please, could you assist me?
Best regards,
Uğur

Hi,
After disabling all non-default plugins that I installed, the error has gone, and I can assign reviewer successfully. So, It is probably due to a problematic plugin. I will try all of them one by one, and share for others.
Best regards.