ORA-24324 error and AOS shutting down

Hi, this error is coming only in AOS. AOS is shutting down daily after this error. Event Viewer Type Date Time Source Category Event User Computer Information 3/1/2005 3:49:33 PM Axapta Object Server None 134 N/A AOSHO Information 3/1/2005 3:43:57 PM Axapta Object Server None 133 N/A AOSHO Information 3/1/2005 3:43:33 PM Axapta Object Server None 150 N/A AOSHO Information 3/1/2005 3:42:05 PM Axapta Object Server None 134 N/A AOSHO Information 3/1/2005 3:30:14 PM Axapta Object Server None 150 N/A AOSHO Warning 3/1/2005 3:30:04 PM Axapta Object Server None 181 N/A AOSHO Information 3/1/2005 3:28:44 PM Axapta Object Server None 134 N/A AOSHO Information 3/1/2005 3:24:50 PM Axapta Object Server None 134 N/A AOSHO Information 3/1/2005 3:19:42 PM Axapta Object Server None 134 N/A AOSHO Information 3/1/2005 3:16:58 PM Axapta Object Server None 133 N/A AOSHO Information 3/1/2005 3:16:46 PM Axapta Object Server None 150 N/A AOSHO Information 3/1/2005 3:16:26 PM Axapta Object Server None 134 N/A AOSHO Information 3/1/2005 3:16:12 PM Axapta Object Server None 133 N/A AOSHO Error 3/1/2005 3:15:47 PM Axapta Object Server None 165 N/A AOSHOInformation 3/1/2005 3:15:47 PM Axapta Object Server None 150 N/A AOSHO Information 3/1/2005 3:15:44 PM Axapta Object Server None 133 N/A AOSHO Information 3/1/2005 3:15:23 PM Axapta Object Server None 133 N/A AOSHO Information 3/1/2005 3:15:17 PM Axapta Object Server None 150 N/A AOSHO Information 3/1/2005 3:14:57 PM Axapta Object Server None 150 N/A AOSHO Information 3/1/2005 3:14:52 PM Axapta Object Server None 133 N/A AOSHO Error 3/1/2005 3:14:43 PM Axapta Object Server None 165 N/A AOSHO pls help me. thanks, Japs