The security certificate for your secure connection to ICISnet Web Services, for the URLs https://www1.gsis.gr and https://login.gsis.gr, is about to expire (09/08/2022). 
The actions for it’s replacement, will start at 09-08-2022 12:00 pm(Local Time +3GMT). Therefore:
1.    time period between 12.00 and 12.02 (Local Time +3GMT) of the same day, there will be a limited access to ICISnet services. The old certificate will expire and be replaced. 
2.    The new valid certificate will be available for download and installation at 12.02(Local Time +3GMT) of the same day.