I changed my SGA size from 300mb to 1.5GB.
Users are getting ora-03113 end-of-file comminication channed.
Got this error after starting the Database. It is 188.8.131.52
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: , , , , , , , 
ORA-01089: immediate shutdown in progress - no operations are permitted
No current SQL statement being executed.
----- PL/SQL Call Stack -----
object line object
reards - chirag