..Finally, finally i got it to work!!!
step 1. Delete
C:\Users\hala6\AppData\Roaming\Autodesk\C3D 2017\enu\support
from the support path (or AutoCAD 2019)
step 2. close AutoCAD
step 3. open AutoCAD
step 4. Add to support path
C:\Users\hala6\AppData\Roaming\Autodesk\C3D 2017\enu\support
as a support path (or AutoCAD 2019)
I makes no sense but it works here!
(Posted for the next soul searching for a answer)