Warning: Undefined variable $ql in /customers/5/8/c/pcwebber.nl/httpd.www/genealogie/common.inc on line 2749

Fatal error: Uncaught ValueError: mysqli::query(): Argument #1 ($query) cannot be empty in /customers/5/8/c/pcwebber.nl/httpd.www/genealogie/common.inc:2019
Stack trace:
#0 /customers/5/8/c/pcwebber.nl/httpd.www/genealogie/common.inc(2019): mysqli->query('')
#1 /customers/5/8/c/pcwebber.nl/httpd.www/genealogie/common.inc(2749): vraag(NULL)
#2 /customers/5/8/c/pcwebber.nl/httpd.www/genealogie/index.php(7): makevisit(0, 0, Array)
#3 {main}
  thrown in /customers/5/8/c/pcwebber.nl/httpd.www/genealogie/common.inc on line 2019