Showing error When I add the new elelments in visual composer

Hi,

We are using the “fortuna-responsive-multipurpose-wordpress-theme” in the “http://sncmarketing.com/” site. And also we are using the visual composer. But when we add the new element while we create the page by using visual composer, it shows “Fatal error: Call to undefined function vc_map_get_attributes() in /home/sncmarkt/public_html/wp-content/themes/fortuna/includes/shortcodes/vc/boc_heading.php on line 11″ error.

So we have tried to fix this issue by deactivated all the plugins which we are using in the site, except the visual composer plugin. But still the same error is showing. We can’t add the element further.

We have attached you the screenshot below what plugins are using in the site.
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So this is no conflicted with the plugin.Please look the error, it is coming from the theme only.

And also i need to say one thing. After we have installed the theme it shows another one error which will be conflicted with the “Ultimate_VC_Addons” plugin. so we have deactivated that plugin. Then only the site is coming. After we entering into the page creation process, we are now facing this new issue.

Fyi :
Now we are using the under construction plugin in this site. So you can’t see the page “http://sncmarketing.com/” showing the error. So you need to login to the wordpress to see this issue.

I am seeing this support that everyone can see the conversation of others here. So i can’t send the wordpress login details here and also this is my client site. Can you please tell me the way how can i send you the wordpress login details privately.

Please look into this issue and fix it as soon as possible after getting the login details.

PLEASE PROVIDE THE SOLUTION AS SOON AS POSSIBLE!!!