Problem with copying site: what theme have I use?

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Hello!
I have to copy the site
http://yadrov-gomeopat.ru/
It made by concrete5 ver 5.6.1 .
Owner of the site give me database backup, I installed the concrete5 ver 5.6.1 and recover from backup, but copied site halts with "no {themes\custom\default.php}" error. I tried to use default themes, renamed to "custom", but it does not work:
https://alple.net/yadrov/index.php/...
Could you advice, which theme should I use?

 
APLe replied on at Permalink Reply
Or, at least, how could I extract correspondence with consumers to easy-to-use form from backup database? In case of extraction I can simply make new site.
Gondwana replied on at Permalink Reply
Gondwana
Did you also get a copy of the relevant files? The database doesn't contain everything necessary to copy a site.
APLe replied on at Permalink Reply
> Did you also get a copy of the relevant files?
No. :- (
We lost access to the server.
Gondwana replied on at Permalink Reply
Gondwana
I don't like your chances of recovering the site. Things that aren't in the database include theme code, custom site code, add-on packages, site images, and more. You may be able to get new copies of some of that (eg, theme and add-ons), but I'm not sure it's even worth trying.