Deprecated: SLN_Helper_AvailabilityItem::isValidDate(): Implicitly marking parameter $service as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html1/wp-content/plugins/salon-booking-system/src/SLN/Helper/AvailabilityItem.php on line 54

Deprecated: SLN_Helper_AvailabilityItem::isValidSpecificDates(): Implicitly marking parameter $service as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html1/wp-content/plugins/salon-booking-system/src/SLN/Helper/AvailabilityItem.php on line 169