error message Field STRU_54H6S2O09N37T35A3FZKU3D3X-ZZPAIDBY is not in the A

After transport (from develop system to testsystem) of datasource and transfer rules etc. i started with loading data from R3. Load seems to be oke, but when checking records in PSA error message appears :

Field STRU_54H6S2O09N37T35A3FZKU3D3X-ZZPAIDBY is not in the ABAP Dictionary

Does anyone knows what could be the cause ?

thx

Ronald