Pagination – Call to undefined function Avia_Element_Templates

I have to make a new topic – because there is no answear to previous thread.

I’ve copied original function-set-avia-frontend.php and copied 3 files and there still is:
Fatal error: Uncaught Error: Call to undefined function Avia_Element_Templates() in /home/klient.dhosting.pl/slubipapier/slubipapier.pl/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/portfolio/portfolio.php:587 Stack trace: #0 /home/klient.dhosting.pl/slubipapier/slubipapier.pl/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php(1042): avia_sc_portfolio->shortcode_handler(Array, ”, ‘av_portfolio’, Array) #1 /home/klient.dhosting.pl/slubipapier/slubipapier.pl/wp-includes/shortcodes.php(343): aviaShortcodeTemplate->shortcode_handler_prepare(Array, ”, ‘av_portfolio’) #2 [internal function]: do_shortcode_tag(Array) #3 /home/klient.dhosting.pl/slubipapier/slubipapier.pl/wp-includes/shortcodes.php(218): preg_replace_callback(‘/\\[(\\[?)(av_hr|…’, ‘do_shortcode_ta…’, ‘[av_hr class=’i…’) #4 /home/klient.dhosting.pl/slubipapier/slubipapier.pl/wp-includes/class-wp-hook.php(287): do_shortcode(‘[av_hr class=’i…’) #5 /home/klient.dhosting.pl/slubipapier/slub in /home/klient.dhosting.pl/slubipapier/slubipapier.pl/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/portfolio/portfolio.php on line 587

Can I get any help? Is there any mail contact to You?
This is my company site and I’m probably loosing clients because of the problem and first time I have to think about changing theme to one with real/24h support.