: Right-click your SkyrimSE.exe , select Properties , and check the Details tab to find your exact product version.

Any of you know what "MaxsulFrame" is? [Vortex] : r/skyrimmods

: Download the IFrame Generator RE AE Support mod from Nexus Mods. This updated version is specifically built to work with Anniversary Edition (AE) versions of the game.

This occurs because the original version of the plugin was designed for older builds of Skyrim SE/AE. When Bethesda updates the game's executable ( SkyrimSE.exe ), older SKSE plugins often become incompatible and fail to load. How to Fix Version Incompatibility