If you look at the blue lines below the error you can trace back to the script where your getting this error. The error is basically telling you it cannot find the key your looking for of that players data, either you mistyped the key's name (its case sensitive as always) when you used the :Get , :Set or :Update function (i dont know which one from just the one line of error you gave me) or you need to just give it a few minutes (thats how it worked out for me). I dont know why you posted this on stack overflow use roblox dev forum instead, I also dont know why Im replying after 9 months