Getting error after upgrading opencontent

I am getting below error while copying pages where there is an instance of opencontent available on page. This has started after upgrading version of open content. Please guide me,

Error: is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at Satrabel.OpenContent.Components.FeatureController.ImportModule(Int32 moduleId, String Content, String version, Int32 userId) at DotNetNuke.Modules.Admin.Tabs.ManageTabs.SaveTabData(String strAction) at DotNetNuke.Modules.Admin.Tabs.ManageTabs.cmdUpdate_Click(Object Sender, EventArgs e) --- End of inner exception stack trace ---