I have imported the content of the file ‘theme-options.txt’ and there were no problems. How have you imported it?
In the folder DemoData there are two files. The file ‘cian-applandingpage.wordpress.2014-11-17.xml’ has to be imported from Tools > Import:Wordpress. And if you want to import the file ‘theme-options.txt’, you have to open it with a text editor, copy the content, go to Appeareance > Theme Options > Utility, and paste into Import input box and Save.