Having the same issue :( https://ibb.co/hWTssa

No idea how to fix it!

This was posted 10 months ago but the link is dead :(

"
dyausdiu40 · 10 months ago
For those encountering the following errors:

witness.cpp: 98 _wtinesses: ["steem username"]
database.cpp:118 reindex !no last block
database.cpp:119 reindex last_block
Download http://www.steemitup.eu/witness_node_data_dir.tar.gz
Backup Config.ini file
Delete Witness_node_data_dir
rm -r witness_node_data_dir
Untar the downloaded file (witness_node_data_dir.tar.gz)
tar -xzvf witness_node_data_dir.tar.gr witness_node_data_dir
Replace the Config.ini file w/ Backup Config.ini file
+gratuitous gratuity to to steemychicken1
"

Does anyone have a fix for this for Windows steem miner?