No changes in live site

[Feliks Stavitski]

Hello,

I have problem with the Magic Fields plugin. 

I can edit the fields in the page edit side of the WP but the changes doesn't show in the visible part of  the site. 

We just updated the site to latest WP and latest plugins. And it seems that after the updates this weird anomaly appeared.

If I try to edit write panel, i get this error -  

"Fatal error: Uncaught Error: Call to undefined function mysql_query() in /data02/virt27955/domeenid/www.persiangulffund.com/htdocs/wp-content/plugins/magic-fields/RCCWP_Application.php:15 Stack trace: #0 /data02/virt27955/domeenid/www.persiangulffund.com/htdocs/wp-content/plugins/magic-fields/RCCWP_CustomWritePanelPage.php(9): RCCWP_Application::AddColumnIfNotExist('wp_mf_write_pan...', 'expanded', 'tinyint NOT NUL...') #1 /data02/virt27955/domeenid/www.persiangulffund.com/htdocs/wp-content/plugins/magic-fields/RCCWP_CustomWritePanelPage.php(290): RCCWP_CustomWritePanelPage::Content(Object(stdClass)) #2 /data02/virt27955/domeenid/www.persiangulffund.com/htdocs/wp-includes/class-wp-hook.php(286): RCCWP_CustomWritePanelPage::Edit('') #3 /data02/virt27955/domeenid/www.persiangulffund.com/htdocs/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #4 /data02/virt27955/domeenid/www.persiangulffund.com/htdocs/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /data02/virt27955/domeenid/www.persiangulffun in /data02/virt27955/domeenid/www.persiangulffund.com/htdocs/wp-content/plugins/magic-fields/RCCWP_Application.php on line 15"

I hope You can help me out. Where is the problem and how can I fix it.

Thank You advance...