In rare cases, if there has been a software update, your browser might still be caching the old version of the code. This may lead to an error like the one you are experiencing. Old browser caches will expire after a few days but if you or your clients want an immediate solution, just refresh your browser cache by holding Ctrl+F5 (Windows) or Command+R (Mac).
Why Does My Booking Calendar Just Show a Spinning Wheel?
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