Tracking Backup Error

I have a PC running vista and when i try to connect it to my macbook air M1 chip 16gb or ram it does not work, i have the latest software installed and i want some tips and things i can do to fix this issue of vista on my mac crashing and getting the error on the pc saying it crashed and it could be from power saving settings and networking and stuff. I use Internet for my mac and ethernet for the pc running vista as main and laptop as auxillery