1) Please check if C:\Games\Tarkov SP B5\Aki_Data\Launcher\Patches\ exists - it should if all was installed correctly
2) Try renaming "Tarkov SP B5" to something like "Tarkov_SP_B5" - idea is to remove spaces as sometimes they may cause issues
I'm stupid.. The game was on "Tarkov SP", not "Tarkov SP B5"... Thank you very much