Hi,
Developer also did not respond to our emails. We deactivated all themes that he made. We will try to contact with him directly and we are guarantee that we will force him to solve the problem that he did.
Also for "Stored" theme, we are asking you to contact with Themeforest.net not with us.
Moreover for "Ostore" theme please write to our email what problem that you faced. We will try to help you by ourselves.
We are also sad for this kind of situation.
regards