It looks like Roblox is struggling under the weight of some massive player numbers, because users are experienceing the “503 Service Unavailable” error message when they try to load up the platform. This is possibly due to a major update coming to Blox Fruits, which is one of the most popular games on Roblox.
Unfortunately, there’s really nothing you can do right now but wait for the error to be cleared up by Roblox’s development team. However, even if you are able to play the game you want, it’s best to be cautious when doing any types of purchasing, because sometimes you games can run into issues with saving your characters and actions properly.
If you want to stay updated on what’s going on with Roblox, just keep an eye on the Roblox Status page which gets updated whenever there’s an issue with the platform. This is always a good place to check first if you’re having problems accessing Roblox!
At the moment, it appears that Roblox’s development team are on the case and looking into the issues. Hopefully, the problems will be figured out quickly, as weekends are often the only time some players can get around to hopping in for some games!