logical logs full - server unavailable

I'm working with Informix Workgroup Server 7.22 on WinNT 4.0 SR3. After deleting several thousand rows from a table, i got the error: logical logs are full, please make a backup of logical log files. When i look at the server, the informix-server is down and unavailable. So i cannot make a backup of the logical logs. When i try to set the server to administration or online mode, i get a timeout-error and in the NT-Events i read: the logical files are full, please make a backup? So how can i make a backup of the logical logs with a server that is unavailable?

I have found the solution: I could not use the GUI interface for the backup, i had to use onbar -lNow everything is fine.