Hi,
I solved.
I excluded this plugin “MOBILE sharebar” and everything works.
WHY?
My site now is ok with:
# SITE_URL: https://www.pentassociazione.it
# HOME_URL: https://www.pentassociazione.it
# IS MULTISITE : No
# THEME | VERSION : Hueman | v3.2.0# WP VERSION : 4.6.1
# PERMALINK STRUCTURE : /%year%/%monthnum%/%day%/%postname%/
# ACTIVE PLUGINS :
Content Copy Protection & Prevent Image Save: 1.3
Cookie Law Info: 1.5.3
Facebook Auto Publish: 1.3.1
Flexible Map: 1.12.0
Form Manager: 1.7.3
Google Analytics Dashboard for WP: 4.9.3.1
MailPoet Newsletters: 2.7.5
Responsive Lightbox: 1.6.9
Shareaholic | share buttons, analytics, related content: 7.8.0.4
Showeblogin Facebook Page Plugin: 3.0
Simple Image Sizes: 3.1.1
Slideshow: 2.3.1
The Events Calendar: 4.2.6
Tweetily: 4.1
Twitter Tweets: 1.5.6
Wordfence Security: 6.1.16
WP Category Tag Cloud: 1.7.1
PHP Version: 5.3.29
MySQL Version: 5.5.49-37.9-log
Web Server Info: Apache
WordPress Memory Limit: 40MB
PHP Safe Mode: No
PHP Memory Limit: 256M
PHP Upload Max Size: 25M
PHP Post Max Size: 30M
PHP Upload Max Filesize: 25M
PHP Time Limit: 120
PHP Max Input Vars: 1000
PHP Arg Separator: &
PHP Allow URL File Open: Yes
WP_DEBUG: Disabled
Show On Front: posts
Page On Front: (#0)
Page For Posts: (#0)