Fatal error: Uncaught Error: Call to undefined function mysql2date() in /var/data/hosting/etre-website/www/wp-includes/class-wp.php:440
Stack trace:
#0 /var/data/hosting/etre-website/www/wp-includes/class-wp.php(738): WP->send_headers()
#1 /var/data/hosting/etre-website/www/wp-includes/functions.php(1105): WP->main('')
#2 /var/data/hosting/etre-website/www/wp-blog-header.php(16): wp()
#3 /var/data/hosting/etre-website/www/index.php(17): require('/var/data/hosti...')
#4 {main}
thrown in /var/data/hosting/etre-website/www/wp-includes/class-wp.php on line 440