sokolyansky

If it was literally just updated 4 days ago, it's POSSIBLE there is something in that release that caused a problem.  I have not purchased that theme, so I can't confirm it.  However if you post in the support topic for that theme, the author can check into it for you!  🙂  
Also...  do you have any System Log or Error log messages?  It's possible one of those logs might have some detail that might shed some light on the problem.  

If you're able to install other marketplace items, it's possible that it is something unique to that plugin.  I would reach out to the plugin author.  It might be a bug with the latest version of IPB (4.6.10).  

Have you checked to make sure you have the appropriate writable permissions on your uploads folder?  One of the common reasons for failure to do activities like this is to not have the correct permissions on a folder in which the system is trying to access.