Corrupt or outdated mods being applied by the user causing this error to occur.

The Nexus Mod Manager is not granted administrative privileges, which might prevent the mods from working.

An outdated version of the Nexus Mod Manager may cause this issue.

The Virtual Install and the game are not on the same hard drive.

ini files inside the data folder of the game are not properly configured to work with the Nexus Mod Manager and the game.

Your Windows Firewall may be blocking certain features of the game or the Nexus Mod Manager from connecting to the server.

There are several reasons that can trigger this issue some of the most common ones include: What prevents Mods from working in Fallout 4? This post will provide you with viable solutions to get rid of this issue in no time. If you’re also experiencing the Fallout 4 Mods not working on Xbox and PC, don’t worry. In most cases, the problem occurred when using the Nexus Mod Manager (NMM) in order to Mod the game. The problem leads to game crashing, or in some cases, the black screen error. Recently, many players reported that the Mods are not working on Fallout 4.

Fallout 4 mod guide step