Looks like the fmx or pll regeneration problem. Generate Library: f60gen module_type=library module=$AU_TOP/resource/BEN_OLLE.pll output_file=$AU_TOP/resource/BEN_OLLE.plx batch=no compile_all=special userid=<apps_un>/<apps_pwd> Generate Form: f60gen module=$AU_TOP/forms/US/BENENFEB.fmb output_file=$BEN_TOP/forms/US/BENENFEB.fmx batch=no compile_all=special userid=<apps_un>/<apps_pwd> That should fix it. From: ora-apps-dba-bounce@xxxxxxxxxxxxx [mailto:ora-apps-dba-bounce@xxxxxxxxxxxxx] On Behalf Of k srinivas Sent: Tuesday, May 06, 2008 9:27 PM To: ora-apps-dba@xxxxxxxxxxxxx Subject: opening form shows error :FRM -40735:ON_ERROR trigger DBAS, I have a single node instance .When I trying opening the application. i.e any forms .. its throwing error : FRM -40735:ON_ERROR trigger raised unhandled exception ORA-06508 .. Plz help me out . Thanks in advance