While trying to install Trados Studio 2021 I got an error:

An error ocurred and the program was aborted. you can try running the program again but if the same problem repeats, please generate a debug log (usually found in C:\ProgramData\SDL\Chainer\Logs) and contact technical support.
InterpreterException

2021-01-31 17:52:35,272 FATAL : Sdl.Tools.Chainer.ExpressionEvaluator+InterpreterException: The expression threw an exception.
Chainer.ProductInfo.Family(new Guid("{65E5BD06-6392-3027-8C26-853107D3CF1A}")).FirstOrDefault() != null &&
          new Version(Chainer.ProductInfo.Family(new Guid("{65E5BD06-6392-3027-8C26-853107D3CF1A}")).First().VersionString) >= new Version(14, 26, 28720) ---> System.ArgumentNullException: Value cannot be null.

Please advise.