I know Tarkov did a patch today to fix some server issues I think (don't quote me on that). If you don't care about losing your profile, just remove all of your SPT stuff (move the mods over to a separate folder), and just reinstall SPT-AKI using the automated installer. It'll automatically download the most recent version, and then you can copy back over your mods and enjoy!
I deleted all SPT folder, and copied the live client folder to a new one. I installed manually cause I couldn't finish the automated installation, I was getting an error, can't download the patcher or something similar, so I did manually, and works properly but, the version of the client was the new, and I installed the latest AKI Patcher, released some hours ago. I don't know if the SPT is already working with the new 3.7.6.