Crashing when updating/installing any mods

Hello, I've run across an issue shortly after using this program. I was able to install all the default selected mods and get everything to work fine, however now when attempting to update/install the default mods I'm getting the error attached.

I've tried uninstalling BSIPA/Remove all mods, deleted/reinstalled Mod Assistant, and deleted/reinstalled Beat Saber but I'm still getting the same attached error, only now I'm unable to have even the default selected mods.

Since the error says that something is in use, I've also attempted to restart my PC and immediately open Mod Assistant and update the mods but have had the same results.

This error message always pops up after Mod Assistant reaches the "Installing SongCore" step after hitting update/install.

I'm not quite sure what is wrong but I would appreciate any assistance.

(Also tried disabling AV)

Try these steps:

1. Close Beat Saber, if it's running
2. Open your Beat Saber install folder. (In Mod Assistant, click on the "Settings" button, then click on the "Open Folder" button next to the Install Folder path
3. Close Mod Assistant, if it's running
4. Delete the folder IPA in the Beat Saber directory
5. Open Mod Assistant again, and Install / Update mods as usual

Does that fix the issue?