Problem with "Travel Personal Information" fields and data not saved in woocomme

Hi,
I have a problem with the “Travel booking (Custom multiply variation with total ticket)” plugin.
When I enable the “Travel Personal Information” fields the system does not identify that the fields are filled at the time of purchase and does not allow the purchase to be completed.

I disabled the “Travel Personal Information” option and it was possible to end the purchase. But another problem happens … The purchase is complete, confirmation emails to the customer and to administrators are also sent, but purchase data is not saved to woocommerce orders.

Can you help me with this?