Warning: Undefined array key "link" in /home/bajoelag/public_html/project.php on line 6

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /home/bajoelag/public_html/project.php:6 Stack trace: #0 /home/bajoelag/public_html/project.php(6): mysqli_query(NULL, 'SELECT proyecto...') #1 {main} thrown in /home/bajoelag/public_html/project.php on line 6