Video on pi 3 to pi 5?

Desperately looking for guidance. Moving up to a pi 5 from 3…I run into the error “Video Library for Processing 4 does not run on this architecture : linux-aarch64” I’ve done something wrong and after hours of searching and trying…no idea where to turn now. Can anyone please send me in the correct direction (that I’ll hopefully understand!) Being new to the pi doesn’t help either.
Thank you