Warning: mysqli_error() expects exactly 1 parameter, 0 given in /storage/ssd4/404/16392404/public_html/admin/dbcon.php on line 2 code example
Example: Warning: mysqli_error() expects exactly 1 parameter, 0
Change
die (mysqli_error());
to
die('Error: ' . mysqli_error($myConnection));
in the query
$query = mysqli_query($myConnection, $sqlCommand) or die (mysqli_error());