bad CPU type in executable

Hello, I'm trying to run a software called bayenv2 through Terminal on Catalina 10.15.4. I've already changed my shell to zsh but still receive:

zsh: bad CPU type in executable

I understand this is an issue with Catalina not supporting 32 bit software like bayenv2. Is there any way to still get this to run? I've seen this question before, but none of the answers seemed to be applicable to my situation. I'm not an expert, so apologies if I'm missing something obvious.