Do you have nginx installed on the server? Have you tried to restart it?
I have that installed, but i cant login to CWP via ip address or via domain, or FTP... nothing works 
any suggestions?
thx
FTP log:
Status:   Connection established, waiting for welcome message...
Status:   Initializing TLS...
Error:   Server sent unsorted certificate chain in violation of the TLS specifications
Status:   Verifying certificate...
Status:   TLS connection established.
Response:   530 Sorry, but I can't trust you
Error:   Critical error: Could not connect to server
Status:   Disconnected from server
Status:   Connection established, waiting for welcome message...
Status:   Initializing TLS...
Error:   Server sent unsorted certificate chain in violation of the TLS specifications
Status:   Verifying certificate...
Status:   TLS connection established.
Response:   530 Login authentication failed
Error:   Critical error: Could not connect to server