How Long can the LME nickel market close?, page-35

That's incorrect. I was just looking at that web page and nearly got caught out by it too. That data table actually relates to data for 14 March (labelled above first table). (The LME continues to generate (theoretical) official prices, even though Ni trading is currently suspended.)

Better to navigate to the 'Price graphs' page using the link of the same name just above the 'Data valid to...' date label. Once there, scroll down to the 'LME Ni Closing Prices Graph' (second graph; make sure it has defaulted to plot for the 3-month contract, otherwise you'll need to manually select and Update). Then click on the price point directly on the chart for Monday 7 March (48,078, expiry date: 07 June 2022).
This price nicely matches the Previous Close (48,078) shown for Ni Futures in Investing.com (UK flag selected).
It also matches my data provider's data feed.