Very kind of you to take out the time. The 'combo license error' is gone. However, the app does not work. The main issue is that the app cannot read amibroker watchlists / Tickers. New watchlists / Tickers by the app cannot be created (as per the previous post by @tradingsol, I am guessing the same issue exists with Metastock). Since there are no Tickers selected by the app, no data can be fetched. For testing, backfill of one manually added ticker was done. The app indicated backfill, however, ticker and the data was not written / saved in the DB. Same case for EOD data DB. In addition, while closing the app, it throws an error of invalid serial. Refer attached image.
Thanks for your time.