Exchange is conducting an unannounced activity that would impact impact the avaliablitliy of these fields. We’ll be in touch with the exchange to restore the data for these fields today after market hours
In the meantime, please disable the filters of “Trade & Order book” fields so that this doesn’t impact your scans due to non avaliablity of data for today
Update 30th May’21 – We are still awaiting the data from NSE on this.