why can't import demo data in Adrenalin

i buy the Adrenalin, when i install the demo data, the statu show “importing deme data” for about one hour, i think which can’t import successful.
the documents said can manual import the data, but can’t find the content.xml in the folders. who can help me? thanks

The time out is usually a hosting issue but the best option is to contact the author https://help.market.envato.com/hc/en-us/articles/203039054-How-to-contact-an-author

yes, already contacted the author.