Warning: session_start(): Session cannot be started after headers have already been sent in /var/www/html/affichageColloscopes/generateCal.php on line 2

Fatal error: Uncaught mysqli_sql_exception: No such file or directory in /var/www/html/affichageColloscopes/connect.php:2 Stack trace: #0 /var/www/html/affichageColloscopes/connect.php(2): mysqli->__construct('localhost', 'colloscope', Object(SensitiveParameterValue), 'colloscope') #1 /var/www/html/affichageColloscopes/generateCal.php(3): include('/var/www/html/a...') #2 {main} thrown in /var/www/html/affichageColloscopes/connect.php on line 2