Thank you for reporting this.
Do you mean that when you click “Save” or “Update” on the provided link, you get a white screen?
What PHP version and WordPress version are you using, and can you tell me what other plugins that are active on your site?
Yes(save or update)
PHP Version 5.6.30
wordpress 4.8
All my extention :
Akismet Anti-Spam
BackWPup
Client Scroller Widget
Contact Form 7
Flamingo
Google XML Sitemaps
jQuery Vertical Accordion Menu
jQuery Vertical Mega Menu
LayerSlider WP
MailPoet Newsletters
Maintenance
MCE Table Buttons
Search box on Navigation Menu
TablePress
TinyMCE 4 Custom Buttons
Visual Editor Custom Buttons
WP Category Tag Cloud
WP-Cirrus
Tanks for help
Thank you for the list.
Do you have access to the PHP error log on your site? When a white screen occurs in WordPress, it means that something went wrong in the code, most likely an incompatibility error.
This error should show up in the logs, which would greatly help me to find out exactly what happened.