You can write your topic however you want, but you need to answer these questions:
What do you want to achieve? Keep it simple and clear!
I want to fix this problem with playtesting. I first experienced it when I tried to playtest two players in a server, I can’t even do it with one player.
What is the issue? Include screenshots / videos if possible!
Every time I playtest I get this error.
What solutions have you tried so far? Did you look for solutions on the Developer Hub?
At first I thought it was my scripts, but every game I’ve tried I’ve gotten that error.
No scripts inside default roblox baseplate, aside from the default roblox scripts. Btw the play button works perfectly fine. But I want to test the game with 2 players.