File does not exist

Valtrtl

I just dusted off an old machine mk2 that I bought in 2013 and launched it up onto my old Mac laptop (10.11.6). Everything loaded up including some of the old saved projects I had from back in the day, but when creating a new project and clicking a sound I got hit with “file does not exist”. I’m a little lost on what the problem could whether I’m using an out of date version of machine or the computer I’m using. Either way, I’m fairly new to using NA and was hoping to hear back from some people on what could be wrong.