You are now on incentivized testnet pools. Check Haskel Testnet (Cardano-Node, FF)
Am I Forked?

Check, if is your pool forked. Please insert your last block in form bellow and submit. After that, if you see in explorer details about block, you´re on right chain, but if is your block not there, you´re forked - delete storage and restart jörmungandr.