If you’re dealing with a permission issue, you should be able to fix the problem by forcing the Steam executable to run with admin access at all times. In this case, the game is unable to load up files outside the core installation, so none of your modes will actually be loaded.

Missing admin access – Under certain circumstances, you can also expect to see the BlockHead error due to permission issues.

If this feature is disabled by default, you should be able to fix the problem by accessing your Steam’s settings and enabling the overlay feature from the In-Game settings.

Steam Overlay is Disabled – Keep in mind that the overlay feature in Steam is a super important requirement for OBSE that needs to be enabled in order for the mod launcher to work.

In this case, you should be able to fix the problem by reinstalling the core game and removing any trace of mods and plugins before redoing the installation.

Corrupted headhuman.dds file – As it turns out, you can also expect to see this error popping up in instances where you’re dealing with some type of corruption that’s affecting your fleet of modes.

If you tied to install it via NMM, redo the installation via OBSE and see if the problem is now fixed. Keep in mind that Blockhead is a plugin that needs to be installed in Data/OBSE/Plugins in order to work properly.

Mod is launched via NMM – If you attempt to launch this mod via Nexus Mode Manager, this is most likely why you see this in-game error message.

So before you do anything else, ensure that you launch the game via the obse_loader.exe.

The game is launched without any mods – Before you explore any potential causes that might be causing this issue, you need to ensure that the game actually launches with the modded infrastructure.

How to install obmm oblivion