So, I deleted wallet completely, installed it again and closed program at once (without synchronization).
Next, I copied the old wallet.dat (made before lycheebit mining) and new onex.conf into the wallet folder:
txindex=1
addnode=185.174.172.212:18291
addnode=[2001:0:9d38:6ab8:34c1:3e49:52eb:566a]:18291
addnode=[2604:2d80:4018:8e2a::9]:18291
addnode=164.132.144.209:18291
addnode=45.32.91.111:18291
addnode=213.32.86.27:18291
addnode=94.23.150.46:18291
addnode=107.175.69.204:18291
Started onex-qt.exe -reindex -rescan.
Now I see transactions from lycheebit, but
they are all unconfirmed. After 7 hours still 0 confirmations.
>getblockhash 80680
>000000000611ac4a3fd4d92e2df6a888a731343f2cf99d4347b2c3aa96ca9bb5