Attempt to concatenate nil with string

[Otiko_SecretBC (OtarN)]

I’ve got some problem here, whenever I run script It prints “Attempt to concatenate nil with string” What should I do?

[Oskar_248 (Pointer)]

Why do you check if “upgrade buttons” exist after detecting “upgrade buttons”?

[WaflSyrup]

just as @Oskar_248 mentioned, why are you checking if upgradeButtons exists after detecting it?

[Otiko_SecretBC (OtarN)]

Just making sure It wont cause errors

[WaflSyrup]

either way as error code says i’m assuming Price isn’t a defined attribute
make sure it is

[FloofyNezzled]

You can’t loop through nil in a table, so you don’t need the if statement. Also this error like the person above me said means that there is no attribute called Price for upgradeButtons

[Oskar_248 (Pointer)]

This only makes sense if you will be removing “Upgrade Buttons” when executing this code

[Otiko_SecretBC (OtarN)]

Just fixed it

I had to put if it was “TextButton”

[KSA_Developer]

Make sure upgradeBackground only have buttons because you might insert something not a button.

and verify if value is a GuiButton and it has Price by

if upgradeButtons and upgradeButtons:IsA("GuiButton") and upgradeButtons:GetAttribute("Price") then

end