Hello, Welcome to Tutorial 4You Channel in this video I will show you how to solve this error.
Roblox authentication failed Error code 403 an error was encountered during authentication SOLVED please try again.
So to solve this error search for %LocalAppData%, I will write this down in the description 4 you to copy paste it then open this folder and find Roblox in it. when you found it just delete the complete folder,
Now go back to the Roblox website and now click on download and install Roblox option and reinstall Roblox. After it is install now when you click on play button it will open the game and the error is solved.
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