bug about Required field in checkout

Hello, Master

This plugin is one of the best for the booking system but sorry to say, there is a bug exist .

In admin panel of the plugin

setting – checkout

It is set Lastname is not required and hide from the page.

Then in admin panel booking page,

You update the booking details(whatever prices, status…),

Last name is asked to fill (Is is required).

This is little annoying as we cannot ask the customers to fill after allow ignor this field.

Only Last name field has a bug so far.

Please check and fix ASAP.

Thanks in advance.