Look for scripts hosted on GitHub . You can read the code to ensure it isn't sending your password to a third party.
Instantly move between your restaurant, the shop, or other players' plots. OP My Restaurant GUI
Most modern GUIs use a loadstring (a single line of code). Never download an .exe file to run a Roblox script. To help you get the best result, could you clarify: Look for scripts hosted on GitHub
If you are determined to find a functional GUI, look for these reputable sources rather than random download links: OP My Restaurant GUI