DELETE FROM WP_USER_DATA WHERE (PROCI_ID, PROCI_DB) IN (SELECT PROCI_ID,PROCI_DB FROM GTT_WFDATARETENTION_IDS) AND 
VAR_NAME IN (SELECT VAR_NAME FROM T_AV_UD_VAR_REMOVE); 
V_CUSTOM_MESSAGE := 'Pruned '||SQL%ROWCOUNT||' rows of user data stored in T_AV_UD_VAR_REMOVE'; 
DATABASE_LOGS.INFO_INFO(G_CTX, IN_RUN_ID, G_PKG_NAME, V_PROC_NAME,V_CUSTOM_MESSAGE); failed with an index key not found error.

SQL Error: ORA-08102: index key not found, obj# 265832, file 12, block 1844690 (2)
08102. 00000 - "index key not found, obj# %s, file %s, block %s (%s)"
Cause: Internal error

alter index WP_USER_DATA_IX01 rebuild;