Something very “ fishy going on” please look into it.
You were likely disconnected.
There are some steps you can take to minimize connection issues.
https://support.chess.com/en/articles/8652402-how-can-i-optimize-my-online-chess-performance
https://support.chess.com/en/articles/8584209-how-do-i-fix-my-disconnect-lag-issues
Something very “ fishy going on” please look into it.