Your installation process is not right. Theme has no problem.
BTW, we found that you are a FREE Member. How did you get the Extend/Pro Version? It is very unexpected to claim on Themes when that type of problem is not related with Themes.
We may assist you more if you provide the Paid User ID or E-Mail. The problem you are facing can be occurred for various reasons but those are not related with the Theme anyway. Business Line Theme is fully working and Thousands of Sites are running on this Theme worldwide.