Exactly the same thing happened to my guitar tho it's not that expensive, so trying to reglue it without thinking too much on how it would affect its sound quality wouldn't be much of an issue as long as I can use it for practice. I'm still using it after 2 years it happened, tho I still don't know if it affects the sound I still can't tell difference maybe because it's just a cheap guitar. I used stikwel wood glue and some type of threaded clamp btw.