# Creditcoin mining Error

**URL:** <https://community.creditcoin.org/t/creditcoin-mining-error/147>\
**Category:** Mining\
**Created:** [December 27, 2020, 6:11pm UTC](https://community.creditcoin.org/t/creditcoin-mining-error/147 "2020-12-27T18:11:11Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![olm91](https://avatars.discourse-cdn.com/v4/letter/o/df705f/32.png) [@olm91](https://community.creditcoin.org/u/olm91)\
**Post date:** [December 27, 2020, 6:11pm UTC](https://community.creditcoin.org/t/creditcoin-mining-error/147/1 "2020-12-27T18:11:11Z")

</div>

After error, sawtooth-validator-default is down.  
Pleas help me…

Mac OS X High sierra 10.13.6  
Port forwarding 4004, 8008, 8800, 55555  
Docker desktop (mac) version = 3.0.3(51017)

## sawtooth-validator-default | [2020-12-27 17:01:49.183 WARNING cli] Network key pair is not configured, Network communications between validators will not be authenticated or encrypted. sawtooth-validator-default | [2020-12-27 17:01:49.183 WARNING cli] Network key pair is not configured, Network communications between validators will not be authenticated or encrypted.

sawtooth-validator-default | [2020-12-27 18:01:59.472 ERROR publisher]  
sawtooth-validator-default | Traceback (most recent call last):  
sawtooth-validator-default | File “/usr/lib/python3/dist-packages/sawtooth\_validator/journal/publisher.py”, line 754, in on\_check\_publish\_block  
sawtooth-validator-default | and self.\_candidate\_block.check\_publish\_block()):  
sawtooth-validator-default | File “/usr/lib/python3/dist-packages/sawtooth\_validator/journal/publisher.py”, line 299, in check\_publish\_block  
sawtooth-validator-default | self.\_block\_builder.block\_header)  
sawtooth-validator-default | File “/usr/local/lib/python3.5/dist-packages/PoW/ **init**.py”, line 266, in check\_publish\_block  
sawtooth-validator-default | pipe\_result = SOLVER.\_comm.recv()  
sawtooth-validator-default | File “/usr/lib/python3.5/multiprocessing/connection.py”, line 250, in recv  
sawtooth-validator-default | buf = self.\_recv\_bytes()  
sawtooth-validator-default | File “/usr/lib/python3.5/multiprocessing/connection.py”, line 407, in \_recv\_bytes  
sawtooth-validator-default | buf = self.\_recv(4)  
sawtooth-validator-default | File “/usr/lib/python3.5/multiprocessing/connection.py”, line 383, in \_recv  
sawtooth-validator-default | raise EOFError  
sawtooth-validator-default | EOFError  
sawtooth-validator-default | [2020-12-27 18:02:44.073 CRITICAL publisher] on\_check\_publish\_block exception.  
sawtooth-validator-default | [2020-12-27 18:02:44.073 CRITICAL publisher] on\_check\_publish\_block exception.  
creditcoin-processor | 3681391 [0x7f9b477fe700] INFO sawtooth.MessageDispatcher null - Server connection state changed to: DISCONNECTED  
creditcoin-processor | 3681915 [0x7f9b513ff7c0] INFO sawtooth.TransactionProcessor null - TransactionProcessor::Run : Server disconnected  
sawtooth-validator-default exited with code 139

sawtooth-rest-api-default | [2020-12-27 18:46:50.791 WARNING route\_handlers] Timed out while waiting for validator response  
sawtooth-rest-api-default | [2020-12-27 20:31:56.452 WARNING route\_handlers] Timed out while waiting for validator response

 ![스크린샷 2020-12-28 오전 3.06.27](https://canada1.discourse-cdn.com/flex031/uploads/creditcoin/original/1X/cfe5c6a354e10f7202eca95c5ae3fedf5cb3ab65.png)  
 ![스크린샷 2020-12-28 오전 3.10.51](https://canada1.discourse-cdn.com/flex031/uploads/creditcoin/original/1X/1967b658f74307ad5021fbc5f0d5cccedccaa738.png)