OHHHHH you just had them put the string back on. I personally would have had it restrung with a new string. I don't know if the string got "wrapped" in the cam or not or how much hit it took before it came off the cams. But since it DID come of the cams I would personally replace it. But you sound a bit young and might be strapped for cash (which isn't just a youth problem anymore in today's economy) and string for that Mathews is going to be on the salty side I'm sure. So make triple sure that string isn't nicked anywhere (use a magnifying glass) and pay close attention to the string area closest to the cams. If it got twisted up in the cams that is where it would have received a nick.