2428292 - Unable to upgrade Sybase replication fro

The Upgrade Errorlog is showing the following error:

message: msg 515, level 16, state 3
WARNING: "Attempt to insert NULL value into column 'prsid', table 'RSSD.dbo.rs_funcstrings'; column does not allow nulls. Update fails."
Command has been aborted.
                    
Error encountered loading   '/directory/database/sybase/REP-15_5/upgrade/rsupgr_ase.sql' for SQL Server.
2017/02/08 07:57:04 Sending the following SQL command to the server: 'dbcc settrunc ('ltm','ignore')'.
2017/02/08 07:57:04 Sending the following SQL command to the server: 'if exists (select name from sysobjects   where name = 'rs_updown_status' and type = 'U') drop table rs_updown_status'.
Task failed: upgrade the RSSD. Terminating configuration.
Configuration failed.

Upgrading SAP Replication Server 15.7.x

KBA , BC-SYB-REP , Sybase Replication Server (standalone) , Problem