how do i stop this from happening? and if this happens, does it not save the data?
Is this an error of a script? If so, please send the script here and tell which lines it’s panicking.
its not a script error, this just happens every once in a while
Well then it might just be a Roblox’s issue or even some problems with the connection between your computer and Roblox’s servers. If you have any script to save/load data make sure you use pcall in all of them. But if everything works fine even with this error, I don’t think you should worry.