Hello. I have a problem with WinCC Scripts during Runtime working. I start Runtime and then in a few (1-3) days ScriptServer stops working. All windows in Runtime that opened by any script does not open. I deactivate Runtime and it does not stop correctly: process of deactivating trying to stop ScriptServer but it freezes at 78% progress (see a picture). Event log contains next records after starting Runtime:

gscrt.exe : 07.06.2021 13:47:42 : SIMATIC HMI WinCC (GlobalScript Runtime): Error  : Error at GTI APEndAct

An error occurred during interprocess communication. The cause of the error is unknown."

Script.exe and dscrt.exe processes on a Task Manager of the PC station (Windows 10 Professional, version 1909 installed) also stop at the moment when this error appears.

What do I have to do to fix this problem? Maybe reinstall Windows or TIA Portal?