2702083 - SQL0539N error while creating missing index in Dbacockpit

Missing index created by "Activate & Customize Database" option in Dbacockpit failed with the below error.
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ALTER TABLE 'Table name' drop primary key
SQL0539N Table or nickname "SAP<sid>.table name" does not have a "PRIMARY"
key. SQLSTATE = 42888
DDL time (___ 1): ......... 2 milliseconds
sql:
DROP INDEX '<primary index'>~ 0'
SQL0669N A system required index cannot be dropped explicitly. SQLSTATE = 42917
DDL time (___ 2): ......... 2 milliseconds
<Primary index>~ 0 could not be removed
Delete index <Primary index>-0 failed
Order for <tablename> failed

• Db2 for LUW
• SAP ERP 6.0 / 740

SQL0669N, Primary Index, Db02, Rename index, Delete index , KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem