Problems with setup with Rancher

I installed Rancher via Helm, but for some reason, when I login with the bootstrap-secret, I get a hard stop at a blank white page. If I look at the browser’s console, I’m getting a bunch of 401, 403, and 502 errors. I’ve tried uninstalling and reinstalling through Helm and adjusting various settings, but I can’t figure out what’s causing this.
I’m running K3S (1.25.4+k3s1) bare-metal on Raspberry Pi 4s, and I’m running Rancher 2.7.0