Joomla 3.7 and PHP7.0

After the update of Joomla 3.6.5.-> 3.7 in the PHP 5.6 ->PHP7.0 the template settings in the administrator panel have disappeared. On Templates Beez, Atomic, Protostar, all template settings are present.
The site is on a local server, so there is no URL.
Version of the PHOTO template 3.21. No third-party extensions were installed.
Can you help me solve the problem with the upgrade of Joomla + PHP?

Hi,

We are working on the updates, regarding the template options, please check this thread:
https://www.gavick.com/forums/storefron ... 13#p269613

When I replaced the line

Code: Select all

var type = items[i].split('=')[0].test(/^\d+$/) ? 'ItemID' : 'Option';

per line

Code: Select all

var type = !isNaN(items[i].split('=')[0]) ? 'ItemID' : 'Option’;

then the template style settings appeared.

But it is immediately evident that
1. There are inscriptions of type "gk_line_ #" as separators of selectors
2. In the "Features" menu "Suffixes for pages" are empty. Rules can not be added.

Could you send me a private message with your website backend and FTP access? I can't see the issue on my instalation (PHP 7 and latest Photo)