Angelo Peca Thanks for posting your question in Microsoft Q&A. By following the steps in your description, I am able to reproduce this issue, and this basically tries to make a call to get runs like below and failed with error message Failed to execute 'open' on 'XMLHttpRequest': Invalid URL
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Then I pressed F5 to run the workflow, and this error message then went away with the successful call. So, you can press F5, it will start/run the server locally and then you can view Overview without issues.
I totally understand this error message didn't provide a good experience and I have passed your feedback to our product team directly as well. They will look to make the changes for better user experience; however, you can feel free to submit any feedback (or open a new issue with the detailed steps) on the extension directly to them via Azure Logic Apps for Visual Studio Code (Standard) repo. I hope this helps with your question and let me know if you have any other.
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