Skyrim receives frequent updates (particularly the Special Edition/Anniversary Edition). Every time Bethesda updates the game's .exe file, the memory "addresses" that mods use to function change.
Sometimes the error persists because a specific mod is so old it doesn't support the current Address Library system. Check your Data/SKSE/Plugins/ folder. Look for .dll files.
Uninstall the existing "Address Library for SKSE Plugins" completely. Install the new version you just downloaded and ensure it is enabled.
Clicked "Deploy" in Vortex or ensured the mod is checked in MO2.
If you are crashing, run through this list: