Well about five days ago i was in the studio and my Fender Pro Junior started to make a weird popping noise, so i just let it sit and left it there. I went back today to see if it was fine, and it was for a good hour or so and then the sound just faded out and no sound came out of the amp. The tubes seem to be fine. Does anyone have any idea what happened and if there is any way to fix it without taking it to a shop because I am running really low on money.
Check the fuse.

If it ain't that, it's probably the tubes.