After delete all files except wallet.dat 15 connections appeared.
When synchronization was completed my balance became in 6 times less. All POS-mining operations after 13.05.2019 disappeared.
What's wrong? I just holded coins in wallet.
No matter what you did, you can always prior check your wallets at explorer
https://chainz.cryptoid.info/lana/ if all is good.
The explorer gives you a relevant information, then and only then comes your system, because you could be on a different chain, so called hard fork. I believe all is good. You've messed up something, somewhere. Do -rescan, checkwallet or repairwallet.