Alarm problems

Hi having trouble when locking my 197 when I press to lock it it beeps after a while it will set alarm off. Can't figure for the life of me how to sort it. Any help thanks
 
I had this problem, it would just keep going off through the night, had multiple trips to renault, new bonnet sensor, turned off the interior sensors, tried the lot. In the end i just pulled the plug on the stupid thing and left it not alarmed