Thank you for getting back to me.
The version of Test Studio you are using dates back more than two years ago and it is compatible with the two separate extensions for Chrome - Execution and Recorder. These extensions, though, are compatible with Chrome version prior 60. You can read further details about the Chrome extensions in Test Studio here
Having said the above, I can suggest two possible options for resolving the issue:
1. Downgrade Chrome and download the corresponding extensions for the version of Test Studio.
2. The other option, which supports the latest browser version, is to upgrade Test Studio and download the single extension compatible with the latest releases of Test Studio.
You will find all download links for our Chrome extensions in the above mentioned article.
In case of any further questions or concerns, please do let us know.