I think error occur again.
19:00:30.982167 WARNING
19:00:39.902273 WARNING <881ae574eba65c12a1cfb072a0965927709b4657e20582695618be32bf938645>
19:00:50.921265 WARNING <599d60e04ecc1dec5e1aa6e8cdb71d5a1a9ab2c7ed1e1965bc3eef7c9f3378e1>
19:00:51.663923 WARNING <599d60e04ecc1dec5e1aa6e8cdb71d5a1a9ab2c7ed1e1965bc3eef7c9f3378e1>
19:01:04.564090 WARNING <754418b8f0a4063f4c3edaf7cf29e588c5e78a79c538439cc6bb62ce34080000>
my daemon show Blockchain Height: 6784
Blockchain is working fine latest height 7045 , you may delete the blockchain folder and re-sync