PHP 7 – 502 Bad Gateway

Use PHP 7 – server error to page:
https://-site-url-/users/-username-/events/my-events/
https://-site-url-/users/-username-/events/my-events/edit/ – create event

Use PHP 5.5 – normal work.

Dubug log:
[14-Mar-2016 18:52:41 UTC] PHP Warning: Division by zero in …./wp-content/plugins/events-manager/em-functions.php on line 93

https://ww.wp.xz.cn/plugins/events-manager/