[for Andrey] User Synchronization Error when trying to sync

No error log for master site was created, only subsite. Log file for subsite attached. Also tried syncing in debug mode and got this error: "There was a connection problem. Please check the URL and Key of the Master site." Can send error log if required but only has a lot of entries like this:
[2015-08-14 08:45:43][S] 4-10 - hash sum error***
[2015-08-14 08:45:43][S] 3-10 - p or hash not set***

Thanks for any assistance.