I have this issue also. At my host, I’m running php 7.1. Currently it’s the highest they offer. On my WordPress dashboard, it says I’m running 5.6.30. I do see that WordPress says I should upgrade to minimum 7.3, but meanwhile, I don’t know why it’s at least not registering as 7.1? I’m not a programmer so would need specific instructions for any helps. Thank you in advance!
@karalina after updating to 1.8.10, I could not do anything within WP and was fearing an epic disaster. You saved me with your solution, THANK YOU!!!