Late-breaking news — I discovered the problem! There is definitely a bug on our end; those errors should not be appearing, and worse, your site basically becomes inaccessible as most code and controls no longer function. I will send this information to our developers.
However, it kind of makes sense that it doesn’t work under Turbo, and it’s curious that it worked before. Here’s the issue: On the “Login” lightbox page, you configured the “Submit” button to go to the “My Account” page as soon as it is clicked. The problem is that there is asynchronous code that also executes when you click that button. Those actions are attempting to execute in parallel and, well, it doesn’t seem to like that…
The fix: simply configure the “Submit” button to not navigate to another page when it is clicked, and let the code do the navigation (as it’s already configured to do). Once you do that, the errors should disappear and your site should work as before.
Let me know how it goes!