gatto - 1 hour ago

hi.
My plc is weidmuller UC20-WL200-AC, IDE CODESYS 3.5.20.40, see picture for task settings.
sometime i've got the plc stop.
Reading the log, I find:
EXCEPTIONPOSITION : IP=0x(nil) (no IECcontext could be retrieved) component CmpIecTask
EXCEPTION [Watchdog] occurred: App=[Application], Task=[TASK_O_MAIN] component CmpIecTask

How to find the position of problem?