Hello @nawafa8, welcome to the Autodesk forum!
The latest update for Revit 2019 is 2019.2.2. If you recently install 2019.2, then I would suggest installing the latest update of 2019.2.2 and retesting the add-ins.
If this issue is occurring with the 2019.2.2 version, then it sounds like either something went wrong with all of the add-ins (at the same time) or there is a problem with the Revit installation.
On the Revit side of this issue, I would suggest trying the following:
- Cleanly uninstall Revit: How to Complete a Clean Uninstall of Revit products
- Reinstall Revit.
- If the install does not include the 2019.2 (or 2019.2.2) update, install at least one add-in and confirm that it works before updating.
- Reinstall Add-ins and retest.
On the add-ins side of this issue, I would suggest contacting the maker of the add-in(s) for troubleshooting.
Lance Coffey
Technical Support Specialist