FATAL Error in J2EE Log Viewer

Hello all,

I found the following error in my Logviewer :

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 
[EXCEPTION]
 java.lang.OutOfMemoryError

Detail :

Category : /System
Application :
Thread : SAPEngine_Application_Thread[impl:3]_77
Message : 0015600443D8C0061000000D60000176F00041FB0CBE9A5D2
Source Name : com.sap.engine.frame.Environnement
Argument Objs : java.lang.OutOfMemoryError
Arguments: java.lang.OutOfMemoryError
Dsr Component : 
Dsr Transaction : 082aa1305aba11db87f1001560043d8c
Dsr User :
Indent : 0
Level :0
Message code :
Message type : 1
Relatives : /System
Session : 0
Source : com.sap.engine.frame.Environnement
Thread Object : SAPEngine_Application_Thread[impl:3]_77
Transaction :
User : J2EE_GUEST

Is anybody has an idea ?

Thanks a lot