Videoleap can’t access apple music

Hi I am trying to add songs from Apple Music to a video I’m making on Videoleap but nothing is listed under it and when I click on the arrow next to artists the list “artists albums songs files” comes up but shows nothing under any of them. I tried download a song to my iPhone and get it through the files but that doesn’t work, nothing there at all on files. Surely there’s an easier way to do this without spending hours doing everything suggested online only for nothing to still keep happening!! I tried musi app too but nothing!! Can anyone help please? I just want to add 1 song from some app to use on Videoleap 😩 Thanks