Message SAP AIPLOC020 - An error occurred when locking the data

Diagnosis
An error occurred when locking the view data V_T001W_EXT. It might bethat the data is currently being changed by another user, or theremight be an error in the lock management.

System Response
The data could not be changed or saved.

Procedure
Check whether the requested object is locked by another user (tableRSTABLE, lock argument T001W_EXT).
List of lock entries