When I ran ./validate or lnms commands I would see the same snmp Cannot adopt OID, Did not find, etc. I was able to fix this by running the following command:
sudo apt install snmp-mibs-downloader
Please let me know where the snmp search path is set. Also, please update the Ubuntu 24.04 install section for SNMP.
Device Alerts and Top Errors page continues to not display output. See Top Error / top-errors.blade.php not outputting information