“Signature expired or wrong time settings” error on PokerStars

Hi experts.
Two days earlier, I tried to launch the PokerStars https://www.pokerstars.eu/) client, but then I found this error message:

I didn't expect this error to come out after launching.
I need to solve this error.
Please help.
Thanks a lot.
Error:
Update Failed
Signature Expired or Wrong Time Settings
