In my case, it was because of a broken pricefeed. I had posted about it in the witness channel a couple of days back. Earlier, I was using the code repo below for pricefeed.

https://github.com/Jolly-Pirate/pricefeed

Now I'm using the below repo, and it was updated 2 days ago. So my pricefeed looks good now.

https://github.com/therealwolf42/hive-witness-essentials

Just wanted to give a heads up that it was not intentional from my end.