Hello,
We suggest you remove the side brush, clean it, and reinstall it to see if that resolves the issue.
If the problem persists, you can try gluing the torn part back together to see if that helps.
If it still doesn't work, you may need to contact customer service for further assistance.
Customer Care:
+1 (888) 308-6159
(Mon. to Sun. 9:00–18:00 EST)
support@mova-tech.com