Strategic Command Wie, Connection error 5

[holon99]

Hello
I can load my "Strategic Command Wie" PBEM game but I can't save anything.

When I quit my turn, nothing is saved.
When the game makes an automatic save, it crashes.
When I save the ongoing game, the game crashes.

The screen shows:
Connection error [-5]
PBEM++ communication error

I have been playing Strategic Command games for more than one year, it is the first time I have this problem.