QNET Error: Unexpected data on control connection: null

Qnet error filled out my syslog and disk space!

I had to kill sbbs , clear logs and restart I don't see again this message but i want to report to known the possible source of this.

abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null
abr 09 18:52:02 scarlet synchronet[31083]: evnt QNET Error: Unexpected data on control connection: null