not able to save assembly with an item from my own catalog

hi I created catalog of screws following this vide.

https://www.youtube.com/watch?v=QBHIIAxdq5I 

 

 I succeeded to do all steps. 

But I am unable to save the assembly with parts imported from catalog

message says 

"Problem : 
You cannot proceed with this operation because you do not have the necessary privileges.
Advice : 
If you have questions about your privileges, contact your administrator."

but I am the only owner of license in our company