ora-01950 no privileges on tablespace "string"

I was looking into a slow running query and wanted to re-create a spatial index.
In AIA I received the following error message:

ORA-29532: Java-Aufruf durch nicht abgefangene Java-Exception beendet: topobase.sql.TopobaseSqlException: ORA-01950: keine Berechtigungen für Tablespace 'TB_DATA'

(ora-01950 no privileges on tablespace "string")

When I tried to re-create the spatial index in SQL developer a smilar error message appeared. I compared the settings (roles, system privileges) of the user with other industry model users and for an unknown reason the "unlimited tablespace" privilege was missing.