We do not have a PHP7 compatible build currently available; several key portions of coding has to be completely rewritten to reach that point.
If you're stuck in a situation where your host updates PHP you can instruct Apache to use an older installed build by inserting one of the following in your .htaccess in your webroot:
# Use PHP56 Single php.ini as default - all subdirectories will use ~/public_html/php.ini
AddHandler application/x-httpd-php56s .php
# Use PHP56 php.ini as default - all subdirectories will use their root php.ini
AddHandler application/x-httpd-php56 .php