catch specific error
catch specific error

synrg-labs/bitcore-explorers-multi,homeopatchy/bitcore-explorers,bitpay/bitcore-explorers,RibbitFROG/bitcore-explorers-multi,RibbitFROG/bitcore-explorers-multi,bitpay/bitcore-explorers,homeopatchy/bitcore-explorers,synrg-labs/bitcore-explorers-multi