Search by date range fails with errors

[clarkac1]

Using menu 'Find Bookings' and entering date ranges results in error message 'We did not recognize the search field: booking_event_date_relative.' and also 'We did not recognize the search field: booking_start_date_relative.' plus ''We did not recognize the search field: booking_end_date_relative.' Dates used in 'Date Booking Made' work, but with error message. Dates used in 'Start Dates' and 'End Dates' result in crashes (traceback available) In addition in the log file there's the message '[warning] Deprecated function CRM_Core_Form::addDateRange, use Use CRM_Core_Form::addDatePickerRange insted;'. This is using version 1.5.3 of CiviBooking extension, version 5.26.2 of CiviCRM and PHP 7.3