how to disable backup

Ispconfig 3.1.7.p1
I need to disable backup for a while, until I repair a nas.
Now i issued 4 days ago:
update web_domain set backup_interval='none' ;
to disable backup for all domains.
But from then, every night backups are done.
What I missed?

Best Regards

 

So You did that update directly in the dbispconfig database? Did You do Resync from the Tools tab in the Panel?

 

No, i didn't. I did after clicking submit
Now, let's see if that was the culprit
Thnx

 

ok, sites backups were stopped after resync, but databases backup still go on

 

Yes, I can confirm, after 4 days, no more backup sites, but databases backup are done every day
Someone does know hot to stop them, too?