Error Observed: Log; Error validating checkpoint module=checkpoint startBlock

If the node throws these logs, check the following:

• Check if the Bor node is in sync by running the following command

  bor attach .bor/data/bor.ipc
  eth.syncing
  

  If the output is “false”, then the Bor node is in sync.
  
  

• Check if the Bor node is on the wrong fork by running this command

  bor attach .bor/data/bor.ipc
  eth_blockNumber
  

  Find the associated block hash for the block number:

  bor attach .bor/data/bor.ipc
  eth.getBlockByNumber("<Block Number>").hash
  

  Inspect the block number to identify if you are running on the right fork. One way to do this is to search for the block number on an explorer like Polygonscan.

If the hashes match, then the node is on the right fork.