Fatal error: Uncaught Error: Call to a member function fetch_array()

Hello,
I've some pages on a website that show me a "500 Internal Server Error".
In the logs I found this:
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Fatal error: Uncaught Error: Call to a member function fetch_array() on boolean in /var/www/vhosts/website.com/httpdocs/webassist/mysqli/rsobj.php:226 Stack trace: #0 /var/www/vhosts/website.com/httpdocs/en/jobs/details_jobs.php(7): WA_MySQLi_RS->execute() #1 {main} thrown in /var/www/vhosts/website.com/httpdocs/webassist/mysqli/rsobj.php on line 226
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The strange things is that on localhost works good, only online have the error.
How can I fix it?
Is very urgent...
Thanks!

P.S. in private more details

There is a bug in some versions of MySQL that cause prepared statements to not work when using Views.

The solution is to turn off prepared statements globally in the rsobj.php file, or in the recordsets that use views individually.

I've turned off prepared statements in the rsobj.php file on your server for now, and that appears to have fixed the problem.

Thanks Ray, I saved locally your version of "rsobj.php".

Last thing, If I need to update in the future this file (I think you'll update it frequently), is necessary only to change "true" with "false" on the row 26?
$this->Prepared = false;

Yes. You can also change it in your recrordset code when each recordset is created instead of updating that file.

Ok, thanks.
FYI, I think that isn't MySQL database installed on my server but MariaDB.
The last version of Plesk (my control panel) on Linux Debian 9 has 10.1 pre-installed (my version is 10.1.26).
https://support.plesk.com/hc/en-us/articles/213403429-How-to-upgrade-MySQL-5-5-to-5-6-5-7-or-MariaDB-5-5-to-10-0-10-1-10-2-on-Linux

Here is the bug report that I think is related:

https://bugs.mysql.com/bug.php?id=42041

It says updating to mysql 5.7 or later would fix the problem.