Okay thanks everyone. I think I will try asking around the LittleBigRefresh discord again, but then later I will try to find the option in xai_plugin and reboot, and if that doesn't work, simply deleting npsignin_plugin.rco in /dev_hdd0/tmp/wm_res.
I'll comment again if I manage to get it working.
I am trying to connect to a custom server for LittleBigPlanet.
The steps I took so far have been to install webman MOD while holding down L1 to install the full version (v1.47.47h), and then to use LittleBigRefresh's "Refresh" program (v2.18.0) to wirelessly patch my copy of LittleBigPlanet 2...