Noted this was due to Durva inSync version 6.5.1 which seems to have Catalina incompatibility. Once we updated the machines to version 6.6.2 the current revision it seems to have corrected the issue.
We've begun experiencing this too. We upgraded Druva inSync to the latest version 6.6.3 and it did not resolve it but caused it to pop-up more often. After the upgrade it popped up twice in a row then we did a reboot which caused two more pop-ups. Our users who are experiencing the most frequent pop-ups are running 10.14.*.