After investigating this issue thoroughly, it turns out that there are a couple of different culprits that might cause this particular error code. Here’s a shortlist of potential culprits:
Method 1: Using 7 Zip to unpack the mods
According to some affected users, this problem can occur due to an inconsistency with the unpacking software that you use when you extract the contents of the mode you’re trying to install or Skyrim SE. In most cases, the issue will end up being caused by an older WinRar or WinZip installation that ends up corrupting some of the files inside the mob folder. If you find yourself in a similar situation, you should start by using a 7Zip to extract the contents of the archive instead of the tool you were using before. Several affected users have reported that they managed to fix the issue by installing 7 Zip and using that to extract the mod that is about to be installed on Skyrim SE. Here’s a quick guide through the entire process: If the same problem is still occurring, move down to the next potential fix below.
Method 2: Opening MO2 launcher with Admin Access
According to some affected users, this problem can also occur if the Mod launcher you’re using to install & apply the mods (most likely Mod Organizer 2) doesn’t’ have admin access. If this scenario is applicable, you should be able to fix the issue by forcing the Mod Launcher app to run with admin access. To do this, right-click on it and choose Run as Administrator from the context menu. Once you’ve ensured that the Mod app is installed correctly, apply the mods as instructed in the dedicated guide and see if the problem is fixed now that the mod app has admin access.
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