Hi, not logged on for a while but have updated PC / Win 10 latest updates etc and when I try and open BA I get a Microsoft.NET Framework unhandled exception error (whatever that is

it says could not load file or assembly 'EO WebBrowser Version 20.3.63.0 Culture=neutral PublicKeyToken or one of its dependencies. The located assemblys manifest definition does not match the assembly reference (Exception from HRESULT 0x80131040)
Any computer whizz kid know what that is all about and the fix ??
Thanks