HI Yigit,

Thank you for the prompt reply and for the link provided. The issue was related to font files being retrieved from CDN
with different domain names than the main domain. It seems that Firefox and IE require that font files originate from the
same domain. After excluding font files from CDN everything is back to normal. The issue is not related to Enfold code
or specific Enfold version.

Regards,
Dimi

We manage our own Ubuntu servers and the php memory limit is being set to 512MB. When I Google :

PHP Fatal error: Call to undefined function do_action()

I get many sites using Kriesi Themes and having the same error:

http://danverswenhamswampwalk.org/wp-content/themes/coherence/framework/error_log

http://tomstudios.com/wp-content/themes/flashlight/framework/error_log

http://www.jennsco.com/wp-content/themes/propulsion/framework/error_log

http://familysmilesdg.com/wp-content/themes/coherence/framework/error_log

http://wildwoodmethodist.com/wp-content/themes/enfold/framework/error_log

http://www.drinkrosealley.com/wp/wp-content/themes/propulsion/framework/error_log

http://www.goosehollowflowers.com/wp-content/themes/coherence/framework/error_log

….

The issue does not seem WordPress related, but rather Avia Framework issue. I do not know if this framework is developed by
Kriesi or by Themeforest. Please advise …