iThemes Security don't backup

I appear to have developed an issue with creating backups from iThemes Security. I’ve attempted to run a manual backup but the following message is generated:

Something went wrong with your backup. It looks like another process might already be trying to backup your database. Please try again in a few minutes. If the problem persists please contact support.

I’ve tried this several times but to no avail any suggestions would be much appreciated.
All of my plugins are upto date as is the theme and the CMS.

Greetings