Warning: mysqli_select_db(): Error while reading INIT_DB's response packet. PID=463 in /app/include/DB.php on line 14

Fatal error: Uncaught mysqli_sql_exception: Malformed packet in /app/include/DB.php:14 Stack trace: #0 /app/include/DB.php(14): mysqli_select_db() #1 /app/index.php(18): include('...') #2 {main} thrown in /app/include/DB.php on line 14