I want everyone to know. When creating a melody tab on HookTheory, make sure the YouTube link is correct. If you are fixing mistakes in a current tab and it gives an HTTP Status 500 Error when you submit, check the YouTube link and make sure it’s written as, for example, https://www.youtube.com/watch?v=RsDXmG1TUf8.
If the link is written as, for example, https://youtu.be/RsDXmG1TUf8, your changes will not be saved because HookTheory can’t read a link like this.