There should not be any "going wrong".

I assume this is now happening on a unix server?

If Line 230 is
$paths_auto = str_replace('mysql', '', trim(shell_exec('which mysql')));

it's not finding the mysql tool.

You can trap the error at least with this.

change it to:

$which_mysql = @shell_exec('which mysql');
if ($which_mysql !== null && $which_mysql !== false) {
$paths_auto = str_replace('mysql', '', trim($which_mysql));
}