Replying to Help "movie recording has been stopped automatically" k+

So today I was about to film, I was at the top of the park follow camming with my t2i. It was about 25 degrees and windy... And I got an error message saying "movie recording has stopped autumatically" I don't think it's the buffer, because I've used the SD car many many times before. I thought it was the cold, but I'm still getting the error message now, hours later, indoors... The fuck is going on?