[1] PHP_WARNING in index.php on line 3530: Trying to access array offset on value of type null

[2] PHP_WARNING in includes/classes/cookie.class.php on line 151: Cannot modify header information - headers already sent by (output started at /home/triolit/triolit.org/docs/e-store/photo/includes/classes/errorHandler.class.php:412)
images of the gallery added on April 2020 - IT Gallery