Warning: Undefined array key "id" in /customers/4/7/7/k-polygone.fr/httpd.www/ectn-management/inf693d455f6c5200a8a544fc9ea604150666ffc1c/header.php on line 9

Warning: Undefined array key "id" in /customers/4/7/7/k-polygone.fr/httpd.www/ectn-management/inf693d455f6c5200a8a544fc9ea604150666ffc1c/header.php on line 10

Fatal error: Uncaught ArgumentCountError: mysqli_error() expects exactly 1 argument, 0 given in /customers/4/7/7/k-polygone.fr/httpd.www/ectn-management/inf693d455f6c5200a8a544fc9ea604150666ffc1c/header.php:11
Stack trace:
#0 /customers/4/7/7/k-polygone.fr/httpd.www/ectn-management/inf693d455f6c5200a8a544fc9ea604150666ffc1c/header.php(11): mysqli_error()
#1 /customers/4/7/7/k-polygone.fr/httpd.www/ectn-management/inf693d455f6c5200a8a544fc9ea604150666ffc1c/customercare.php(1): include('/customers/4/7/...')
#2 {main}
  thrown in /customers/4/7/7/k-polygone.fr/httpd.www/ectn-management/inf693d455f6c5200a8a544fc9ea604150666ffc1c/header.php on line 11