Message SAP /DSD/SL_FSR006 - &1 could not be blocked (error in lock management)

Diagnosis
Relevant &V1& could not be blocked because the system reported an errorin the lock management.

System Response
The relevant &V1& cannot be processed. Further data will be processed,if required.

Procedure
Inform your system adminsitrator. Wait till the error in the lockmanagement is corrected. Then try again.