MySQL server has gone away<div align="left"><pre>1 : SELECT * FROM vn_user_role WHERE user_role = 0</pre></div><br />
<b>Fatal error</b>:  Uncaught TypeError: mysqli_fetch_assoc(): Argument #1 ($result) must be of type mysqli_result, bool given in /var/www/themesseo/includes/database/Msqli.php:111
Stack trace:
#0 /var/www/themesseo/includes/database/Msqli.php(111): mysqli_fetch_assoc()
#1 /var/www/themesseo/includes/DB.php(133): Msqli-&gt;getOneRow()
#2 /var/www/themesseo/includes/Module.php(48): DB::getOneRow()
#3 /var/www/themesseo/includes/Block.php(47): Module-&gt;getGuest()
#4 /var/www/themesseo/index.php(22): Block-&gt;getBlockByScreen()
#5 {main}
  thrown in <b>/var/www/themesseo/includes/database/Msqli.php</b> on line <b>111</b><br />