Raspberry Pi 4 | System is freezing up

System

Hostname OpenWrt
Model Raspberry Pi 4 Model B Rev 1.4
Architecture ARMv8 Processor rev 3
Firmware Version OpenWrt 21.02.0-rc2 r16122-c2139eef27 / LuCI openwrt-21.02 branch git-21.148.49484-14511e5
Kernel Version 5.4.119
Local Time 2021-10-25 10:15:35
Uptime 10h 19m 33s
Load Average 0.40, 0.45, 0.43

Are there any commands that I can run via the CLI that will help to diagnose/isolate this issue.

The router has been stable since I removed irqbalance, but I'm not sure if that is just a coincidence.

The problem first occurred when I enabled both 'packet steering' and irqbalance. Should both things be run at the same time?