retrying with different nonce

hi,
How can I solve this mistake?

epoch_mining.log
2018-12-06 22:35:06.730 [error] <0.1263.0>@aec_conductor:handle_mining_reply:718 Failed to mine block, runtime error; retrying with different nonce (was 16644332362640536786). Error: {execution_failed,{status,2}}
2018-12-06 22:35:06.730 [info] <0.1263.0>@aec_conductor:start_mining:674 Starting mining
2018-12-06 22:35:07.752 [error] <0.1263.0>@aec_conductor:handle_mining_reply:718 Failed to mine block, runtime error; retrying with different nonce (was 16644332362640536787). Error: {execution_failed,{status,2}}
2018-12-06 22:35:07.752 [info] <0.1263.0>@aec_conductor:start_mining:674 Starting mining
2018-12-06 22:35:08.780 [error] <0.1263.0>@aec_conductor:handle_mining_reply:718 Failed to mine block, runtime error; retrying with different nonce (was 16644332362640536788). Error: {execution_failed,{status,2}}

Who says that is a mistake ? “Retrying with difference nonce” is not a mistake.

However, you do have a big mistake there, it says “execution_fauled,{status,2}” now that is bad. what miner did you configure?

Check your epoch_pow_cuckoo.log for the error why it says “execution_fauled,{status,2}”