Diagnosis
Fields that are added to a transparent table structurein the ABAP/4 Dictionary must also be added to thestructure of the database table. When an attempt was made to do this,an abnormal termination occurred as a result of a database lock.

Procedure
The action can be repeated as soon as the database lock has beenremoved from this table. This can be done by explicitly deleting thedatabase lock or by closing down the database. Please inform yourdatabase administrator.