After the 1.21.130 update getting error code block this is on. Realms and single player
After going through addons and removing reinstalling them I managed to get 17 addons to work.
Before the update I had over 30 working no issues.
Created a single player world fresh added addons go the same error code “block”
This has been going on since newest update
Sorry shortly after posting this I learned of a hotfix that got released today