No, the "ses st" is a normal debug message indicating initialisation of the FXCM API. The login is also executed, otherwise you would not see any dots, but some subsequent API call hangs.

The next step, when damaged Zorro and FXCM files can be really excluded as the reason of the problem, would be looking for damage in the Windows system. Check in the event log what really happened with your VPS last weekend. Ask your VPS provider if he has a backup and can reset your VPS to the state of last week.