Deleting scripts every now and then

Every now and then the tracking scripts get deleted. It also happens something very strange from time to time: I see the list of tracking scripts I added, but when I enter in each one of them, the sections (where the scripts are added) are blank, as if there is no code written anywhere; sometimes, though, even if the sections appear blank, the scripts continue to work (checked the db and they are still there, visible in the backend but not in the frontend)! Zero reliability. Look for other options