Game is gone

[The Great Fusilli]

Ive been working this custom level for a week and today something happened ~ runtime error 11' division by 0... what is this??!!! I can't even open my level or any other of my levels SMBX just closes itself after the error. the last thing I remember doing was editing graphics and sound files... help what can I do?I hope this can be fixed I worked very hard on it!

[HenryRichard]

Uninstall SMBX, and reinstall it. Your custom sound files will be gone, but everything else should be fine.

[DarkMatt]

Your SMBX has been consumed by a miniature black hole. Now you know not to mess with the rules of nature.

If you can't remember what you changed to cause that and how to unchange it, then yeah, I would recommend you reinstalling SMBX.