When i open kingdom 8.6, an error window appear showing…..

An error occurred: Cannot create instance of downloader dialog’ defined in assembly ‘Smt Updater Manager’, Version=, Culture=neutral, publicKey Token=null’. Exception has been thrown by the target of an invocation. Error in markup file, ‘Downloader Dialogue.xaml’.

When i click ok, and open project the, on base map, i cannot change scale etc.
Let me know, how can i resolve this issue?