Is this a Robinhood glitch? Why is the Open Interest on this random bank put so high if nobody is trading it?

I’m still pretty new to looking at the Greeks and option chain stats. I was just clicking around some regional banking tickers trying to learn how ETFs work, and I opened up the KRE chain.

I saw these $58 Puts and noticed the Open Interest is almost 63,000, but the volume today is literally 0.

I thought options usually had way lower numbers unless it's a huge ticker like SPY. Does this just mean a bunch of people bought these a long time ago and forgot to close them?