Magical Vacations uses Cart and Checkout Validation to block the checkout while your store is in vacation mode.
If a customer reaches the checkout while a vacation rule is active, they will see this error message:
This store isn't accepting orders right now.
How to disable Cart and Checkout Validation
Go to your Shopify Admin > Apps > Magical Vacations.
Click Settings in the left sidebar.
Scroll to the Checkout section.
Uncheck the box for Block checkout during vacation mode.
Save your changes.
If you believe the validation is not working correctly, please contact our support team and we'll help investigate.