I think you're running on wrong chain.

Please backup your wallet.
Remove all files except wallet.dat from Adnetcoin's data directory

Default Location
Windows: %APPDATA%\Adnetcoin
Linux: ~/.adnetcoin/

Upgrade the Adnetcoin wallet to v0.15.0.4
Download:
http://adnetcoin.cash/download or https://github.com/adnetcoin/adnetcoin/releases/tag/v0.15.0.4

Wait 24 hours to unban your IP.