Hello.
Please open this file ../{Booking Calendar Folder}/js/client.js

Then find this code:
// Recheck for max num. available visitors selection /*if ( element.name == ('phone'+bk_type) ) { // we validate a phone number of 10 digits with no comma, no spaces, no punctuation and there will be no + sign in front the number - See more at: https://www.w3resource.com/javascript/form/phone-no-validation.php#sthash.U9FHwcdW.dpuf var reg = /^\d{10}$/; var message_verif_phone = "Please enter correctly phone number"; if ( inp_value != '' ) if(reg.test(inp_value) == false) {showErrorMessage( element , message_verif_phone);return;} }*/
and uncomment it, like this:
// Recheck for max num. available visitors selection if ( element.name == ('phone'+bk_type) ) { // we validate a phone number of 10 digits with no comma, no spaces, no punctuation and there will be no + sign in front the number - See more at: https://www.w3resource.com/javascript/form/phone-no-validation.php#sthash.U9FHwcdW.dpuf var reg = /^\d{10}$/; var message_verif_phone = "Please enter correctly phone number"; if ( inp_value != '' ) if(reg.test(inp_value) == false) {showErrorMessage( element , message_verif_phone);return;} }

Please note, its validate form field, like this:
<p>Phone:<br />[text phone] </p>

Validation rule - validate a phone number of 10 digits with no comma, no spaces, no punctuation and there will be no + sign in front the number.

If you need to have 11 digits, please replace this:
var reg = /^\d{10}$/;
to this
var reg = /^\d{11}$/;

Important! We can not start, some personal customization or custom development and do not provide this service right now.
Please note, if you will modify the source code (including this fix) of the Booking Calendar, we will not guaranteed the correct work of plugin and do not support it. Thank you for understanding.

Hello.
You can make a little fix for load JavaScript files of Booking Calendar , only at pages with Booking forms (if you know URL of these pages).
Please open this file ../booking/lib/wpbc-scripts.php
then find this code:

add_action( 'wp_enqueue_scripts', 'wpbc_load_js_on_client_side', 1000000000); // Enqueue Scripts to All Client pages

and replace it to this code:

if ( ( in_array( $_SERVER['REQUEST_URI'], array( '/page1/', '/page2/', '/page3/', '/page4/', '/page5/' ) ) ) ) { add_action( 'wp_enqueue_scripts', 'wpbc_load_js_on_client_side', 1000000000); // Enqueue Scripts to All Client pages }

where '/page1/' ... '/page5/' its the full terms of your pages with the booking form. So its mean that your are inserted the booking forms into the pages like these:

https://www.server.com/page1/
https://www.server.com/page2/
https://www.server.com/page3/
https://www.server.com/page4/
https://www.server.com/page5/

2) The same thing you can do with line about loading CSS (in the same file):

find this code:

add_action( 'wp_enqueue_scripts', 'wpbc_load_css_on_client_side' , 1000000000); // Enqueue Scripts to All Client pages

and replace it to this code:

if ( ( in_array( $_SERVER['REQUEST_URI'], array( '/page1/', '/page2/', '/page3/', '/page4/', '/page5/' ) ) ) ) { add_action( 'wp_enqueue_scripts', 'wpbc_load_css_on_client_side' , 1000000000); // Enqueue Scripts to All Client pages }

PS Otherwise, if its will not work, please contact the developer of your theme, about resolving this issue in the source files of your theme.

Kind regards.

Hello.
Its seems like some error in the Season filters. Please open the Booking > Resources > Filters page and recheck for the any mistakes or some wrong things there.
Also please recheck availability at the Booking > Resources > Availability page for the booking resource with ID = 6
Kind Regards.

Hello.
The booking calendar have the standard booking workflow, which is different from the description in your comment.
In the paid versions of booking calendar you can have the different booking forms with calendars for the each of your properties. So it's not inside of one calendar. You can have the 2 different calendars with booking forms for the each of your properties. Please read more here https://wpbookingcalendar.com/overview/#booking-resources

Also please retest this functionality in the live demo to be sure in functionality.
Kind regards.