Troubleshooting a Blockchain App Outage Across Five Failure Layers
A blockchain application can stop working while the chain beneath it continues finalizing blocks. A frozen balance may come from an indexer running behind. A failed transaction may never have reached a remote procedure call (RPC) endpoint; an absent signing prompt points toward the wallet or interface. During an incident, start with scope rather than the most visible symptom. Confirm what still works, then test from the public chain toward the user interface. One broken access path should not be mistaken for a network-wide halt.