new person not saving
[2021-10-01 17-02-37] PHP Notice: Trying to access array offset on value of type null in /home/charles/workspace/alembiq/bistro/htdocs/persons.php:35 @ http://bistro/persons.php
[2021-10-01 17-02-37] PHP Notice: Undefined index: personRoof in /home/charles/workspace/alembiq/bistro/htdocs/persons.php:40 @ http://bistro/persons.php
[2021-10-01 17-02-37] PHP Notice: Trying to access array offset on value of type null in /home/charles/workspace/alembiq/bistro/htdocs/persons.php:49 @ http://bistro/persons.php
[2021-10-01 17-02-37] PHP Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, bool given in /home/charles/workspace/alembiq/bistro/htdocs/persons.php:342 @ http://bistro/persons.php
[2021-10-01 17-02-41] PHP Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, bool given in /home/charles/workspace/alembiq/bistro/htdocs/persons.php:342 @ http://bistro/persons.php