Upgrade to TradosStudio2021SR1_16.1.8.4404.exe DID NOT work

I just upgraded the "TradosStudio2021SR1_16.1.8.4404.exe" version, but it's not working and the error message:

Could not load filter or assembly 'Simpleinjector, Version =4.9.0.0, Culture=neutral, PublickeyTokey=984cb50dea722e99' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference.  [Exception from HRESULT: 0x80131040]

Your reply will be greatly appreciated.

Best regards,

Michio

michiokn@mymts.net