HELP! Last update seems to have broken the path to several Materials, tools and Python Plug-Ins

Hello all,

Please, I need urgent help, this is a time sensitive issue since I have a deadline set to this Friday.

I use SP on a daily basis. Yesterday everything was working fine. I have the auto-update enabled on my Creative Cloud and the software updated overnight.
Today, when I opened SP, I have noticed several warnings to the Log related to Python. Then, the majority of my Materials, Smart Materials, Masks, Brushes and virtually all tools are endlessly loading and impossible to use. (See pictures) Even a Plug-In which I use daily have disapeared. When I opened a previous file, I wasn't able to edit it as I usually would do, by turning some hidden layers on and hiding other ones. It simply loads forever, making a ton of files that I prepared completely useless. (See image as well. I pushed the model outside of the viewport since it is proprietary info from the company I'm working for).

Here's the specs:
Substance Painter Version: 8.1.0 build 1699

Windows 10 Pro - 64 Bit (Version 21H2)

Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz 3.79 GHz
RAM: 16,0 GB
GPU: NVIDIA GeForce RTX 3070

I'm sending a screen print + the log file attached.

Thanks in advance.