Making a building game scripting problem

Hello. I want to make a game like blockate or build world but I have a problem. places in blockate and build world you have to create worlds then build there I tried it with reserved servers but it didn’t work now I’m stuck on this part any help? (sorry for bad grammar)

im confuse whats your issue, what do you need help with?

making places like reserved servers but accessable for ever

This might help, TeleportService | Roblox Creator Documentation

I know this i tried it but I cant convert string to tuple if possible my issue might be fixed