Plesk Panel shows an error message:
- While changing any settings in Plesk
- Migration is performed
HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. Detailed Error Information Module CustomErrorModule Notification SendResponse Handler Not yet determined Error Code 0x8007000d Config Error Configuration file is not well-formed XML Config File \\?\C:\inetpub\temp\apppools\PleskControlPanel\PleskControlPanel.config
Such situation may take place when antivirus blocks Plesk requests on change IIS configuartion.
Try to temporary disable Antivirus program and check how Plesk works. If Plesk works correctly after that, please configure Antivirus to exclude Plesk files from scanning process.
In case migration is performed, ensure that antivirus is disabled on both source and destination servers.