fenza

The problem is on my W3 Total Cache plugin and iTunes Security..
!! WooCommerce not working property with Hide the Backend of iTunes Security

Thank you for your answer!
Yes I am using the latest version of iTheme Security!

Debugging info after activate gravity forms plugin:

Warning: Cannot modify header information – headers already sent by (output started at /home/g4gn91u9/public_html/index/wp-config.php:1) in /home/g4gn91u9/public_html/index/wp-includes/pluggable.php on line 1121

Please pay attention: after disable iTheme security.. gravity forms works without problems!

Thank you in advance for your kind help!

Can I install old version?

Sorry, in my previous post.. link of the pictures is not loading.
here is the new one:
pic with problem
pic with NO problem