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

If KRNL-Injector failed to find the Roblox process, delete KRNL App data and see. If that doesn't help follow the solutions mentioned in this post to resolve the issue.

Can't long into Roblox because of the error "User Status May Not Be Up to Date"? Here is everything you need to know about fixing it.