To allow your cPanel users to use RV2Factor, you’ll need to active and allow quota to them first.
Just simply go to WHM -> RVGlonbalsoft Manager -> RV2Factor Manager -> cPanel & App Management.
1. Make sure RV2Factor for cPanel & App: Enabled
2. Click “Add Quota”
3. In “RV2Factor Account management”, select “User Name” from drop-down list.
4. Set quota for the User for App (WordPress+Hostbill) and cPanel.
5. Press “Add” to save.