Warning: Undefined array key "yourname" in /customers/f/c/b/lecars.be/httpd.www/contact.php on line 7

Fatal error: Uncaught Error: Call to undefined function show_error() in /customers/f/c/b/lecars.be/httpd.www/contact.php:56
Stack trace:
#0 /customers/f/c/b/lecars.be/httpd.www/contact.php(7): check_input('', 'Naam')
#1 {main}
  thrown in /customers/f/c/b/lecars.be/httpd.www/contact.php on line 56