So I am unsure why it was working a month ago but is not working now. Is it always going to run out of space? Do I need a bigger sd card? What exactly are the purposes of the log files?

The pi will boot but Magic Mirror won’t. I believe I’m having issues with the cache. It was working for a long time but I have since relocated the mirror and it no longer boots the MM program. when I run npm start i get “no helper found for module” and when I try to update my MM program I get “you dont have enough space var/cache/apt/archives”. Any help would be appreciated as it ran quite well a while ago. Do the modules build up data after being run 24/7? I’m also not entirely sure what a cache is if anybody could help. Thanks.