Hopefully fixes a crash when mining
Hopefully fixes a crash when mining

tutor-web/Auroracoin,tutor-web/Auroracoin,tutor-web/smileyCoin,tutor-web/Auroracoin,tutor-web/Auroracoin,tutor-web/smileyCoin,tutor-web/smileyCoin,tutor-web/Auroracoin,tutor-web/smileyCoin,tutor-web/smileyCoin