If Roblox Marketplace is not working or loading and you see If you are having trouble loading Marketplace message, then see this post.

Fix #2: Try using another Roblox account. In order to lessen the impact of hackers and players who were previously banned, certain Roblox games may not allow newly created accounts from joining ...

If you get Disconnected Error Code 272 on Roblox, Lost Connection due to an error, follow the solutions mentioned in this post to resolve the issue.