[OJS] Error when trying to view "Review Details"

Since I updated the system to version, an error was detected in the workflow in the review section.
If open the menu under the name of the reviewer (in Workflow → Review → Reviewers) and try to open the review details, an error message occurs (looks like generated by alert() function):
Failed Ajax request or invalid JSON returned.
And in the pop-up layer, only the title is visible and there is no review details.
I would be grateful if you tell me how to fix this.

Hi @Helyfoxer,

Check your PHP error log for details.

Alec Smecher
Public Knowledge Project Team