PHP Warning A non-numeric value encountered

PHP Warning A non-numeric value encountered

PHP Warning A non-numeric value encountered

PHP Warning A non-numeric value encountered

PHP Warning Cannot modify header information - headers already sent by (output started at /var/www/matrix/src/Error/Outputter/RequestErrorOutputter.php:26)

PHP Warning Cannot modify header information - headers already sent by (output started at /var/www/matrix/src/Error/Outputter/RequestErrorOutputter.php:26)

PHP Warning Cannot modify header information - headers already sent by (output started at /var/www/matrix/src/Error/Outputter/RequestErrorOutputter.php:26)