When clicking on the Repair button near the Plesk Installation aspect in Tools & Settings > Diagnose & Repair the following error is displayed:
500: external Server Error
400: Bad Request
And near the Plesk Installation aspect the message below appears:
Could not check the aspect. Please try again later.
If refreshing the page in a browser, the repair operation is reported to be running and no errors are displayed.
During the execution of the
plesk repair command with the
installation aspect, the tool is checking and fixing multiple issues including the MySQL server. Plesk becomes inaccessible at that moment, so the error appears.
Such Repair Kit behavior was confirmed as a Plesk extension bug with ID EXTPLESK-3451. The error message can be safely ignored.
Until the bug is fixed as a workaround refresh the Tools & Settings > Diagnose & Repair page in a browser and wait for the process to complete.
Alternatively use the CLI solution:
Connect to the server via SSH/RDP.
Note: Additional step for Plesk for Windows: Start the Command Prompt
To diagnose and troubleshoot issues with Plesk run the command below:
# plesk repair installation