Relay status - check your pool's relays on adapools.org under About Tab
Block producer in/out connections - should match your environment. At least 1 in and 1 out connection is required. Check your firewall or IP/port configurations.
TX processed count - must be non-zero on your block producer node. Check your network config.
Time synchronization - install chrony on all BP/relay nodes.
Declared pledge is met - check your pool on pooltool.io or adapools.org. Add more ADA to pledge address.