Like i said i installed the theme many times now and still have the same problem. When i check the network i see the following request messages accure during installation:

First request

{"status":"success","message":"Failed to import woodmart_slider Best sellers<br \/>Failed to import “Best seller slide 1”: Invalid post type woodmart_slide<br \/>Failed to import “Best seller slide 2”: Invalid post type woodmart_slide<br \/><p>All done. <a href=\"PRIVATE">Have fun!<\/a><\/p><p>Remember to update the passwords and roles of imported users.<\/p><br>Front page set to <strong>\"Home base\"<\/strong><br>Widgets updated<br>Options updated<br>Header updated<br>"}

Second request:

{"status":"success","message":"Media “wood-gallery-placeholder-5” already exists................<br>Can't download revslider file from the server https:\/\/woodmart.xtemos.com\/dummy-content\/alternative-energy\/revslider.zip<br>"}