Reach suddenly dropped out of nowhere and I’m not sure what happened and how to fix it?

Hello fellow Facebook page admins/creators. I’m not sure if this has been a problem for anyone else recently come into a problem where your reach/earning have dropped significantly? Last month around this time I was reaching about 800-900k people a week with the entire 28 days totally out at 3.2 million views with around $300 payout. This week so far I’ve only reach about 600k with around $25 payout for the month, I know it’s only 11 days in but this seems significantly lower than usual. Has anyone run into this issue? If so what steps did you take to “fix” it?