First, be sure to check your Adobe Applications are up to date.
We are aware that users running older versions of the extension are not updating automatically. Adobe Exchange engineers are actively working on the problem.
They've provided the following workaround in the meantime:
Sign out of the Frame.io panel in Premiere:
Click the My Exchange tab then select Uninstall
Sign out of your Adobe Exchange and reboot your machine.
Once rebooted, sign into your Adobe Extensions page again and this time click Install
Sign back into your Frame.io panel which will now be on the newest version.
If you're still having issues please reach out to support via the purple chat icon.