Issue upgrading

Hello,
I can’t upgrade no more SuiteCRM : calling for the wizard ends on a blank page.
I got (after checking some boxes here and there) a cron email about this. If someone can help me to understand the message, it would be great.
Here it is :
“PHP Warning: mysqli_fetch_fields() expects parameter 1 to be mysqli_result, boolean given in /usr/local/cpanel/whostmgr/docroot/cgi/softaculous/enduser/main/functions.php on line 10212
PHP Warning: mysqli_fetch_fields() expects parameter 1 to be mysqli_result, boolean given in /usr/local/cpanel/whostmgr/docroot/cgi/softaculous/enduser/main/functions.php on line 10212”

Check your apache error logs or server logs. I would also advise settings permissions. Search the forums for permissions information.

These are just PHP Warnings, which do not stop the application from running.

OK.
I try to do as you say.
Thanks for your help.
Rob.