Unable to run tests with Resharper runner

Hi,

I'm unable to run tests using the Resharper test runner. I am consistently getting the error:

SetUp : TypeMock.TypeMockException : 

*** Typemock Isolator is currently disabled. Enable using the following:

 * Within Visual Studio: 

   - Use Typemock Smart Runner  

   - For other runners, Choose Typemock Menu and click "Integrate with Other Runners"

 

 * To run Typemock Isolator as part of an automated process you can:

    - run tests via TMockRunner.exe command line tool

    - use 'TypeMockStart' tasks for MSBuild or NAnt

I have Smart & "Integrate with Other Runners" enabled.

This is my setup:

• I'm using Visual Studio Professional 2019 (I face the same issue with 2017).
• I have the Typemock 8.9.1.0 - Complete version.
• ReSharper 2019.2.4 

 I haven't been able to use the tools for several days. Could please help?

Thank you