I paid for minecraft for a long time ago, and I played minectaft for a long time, but it said that I did not paid for the game when I moved .minecraft in my folder and move it back

I paid for Minecraft before, and I play Minecraft on my account a lot. Today I moved .Minecraft folder, then I move it back and opened Minecraft launcher, login and it said that I did not paid for the game, so I could only try out.