Urgent: FEP issue

Hi everyone, 

I have an error with the CHARMmRelativeFEPCalculationsGPU tool in BIOVIA DiscoveryStudio. After many hours of calculation, the work stops due to "System Error", giving this error:

 

Authentication failed: Unable to authenticate: The user name or password is incorrect.

Authentication failed connecting to 'https://xxxxxxx/security/sessions/current'

CHttp::Authenticate: Pipeline Pilot exception rethrown

CHttp::CheckResponseHeaderAsync: Pipeline Pilot exception rethrown

CHttp::internalOpen: Pipeline Pilot exception rethrown

CHttp::CheckResponseHeaderAsync: Pipeline Pilot exception rethrown

CHttp::internalOpen: Pipeline Pilot exception rethrown

CHttp::Open: Pipeline Pilot exception rethrown

vcFile::Open: Failed to open https://xxxxxxxsecurity/sessions/current: Pipeline Pilot exception rethrown

 

I don't know why it gives me this error. 

 

Could you please help me with this issue? 

 

Thanks