On this page, you will find more information about the most common causes and most relevant solutions for the booking error '2421'. Do you need help straight away? Visit our support page.
Element name has to be an integer. This error occurs when specified value is not a full number. This error could occur for various elements.
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We've created a list of solutions which you can follow if you want to solve this booking problem yourself. Do you need more help? Visit our support page if you need professional support with booking right away.
Adjust specified in the error description element to be a full number.