Furthermore,
"Desktop: Lobby issues - Clearing the application and lobby cache
If you're having issues with our lobby, seeing a red error page, graphical issues, or loading issues, we recommend clearing the application and lobby cache from our software.
To do this, follow the instructions below, depending on your operating system:
Windows
Close our software. You won't be able to delete the required files while our software is open.
Open the 'Run' command window ('Windows key + R').
Type in: %temp%
Delete these folders:
'XCW' is the application cache. [located ???]
'PokerStarsBrCache' is the lobby cache. [located C:\Users\<userName>\AppData\Local\Temp]"
paraphrased instructions from:
https://www.pokerstars.com/help/articles/tec-app-lob-cac-dsk-mstr/