Access denied Issue in Temp Table in AX 2012

I have a custom table and a SSRS report using this table on the executon of the report user is getting following error:

User ''user1'' is not authorized to select a record in table 'LabelGroupDetailsTmp'. Request denied.

Cannot select a record in Product Label Group Table (LabelGroupDetailsTmp).

Access Denied: You do not have sufficient authorization to modify data in database.

i user is given the Admin rights in the system there is no error and report displays correctly.

i cannot find any way to fix this? any suggestions?