I use the latest source code.
Error in logs

In block explorer - https://chainz.cryptoid.info/btm/
block 518192
Linux cmd -
"version" : 90803,
"protocolversion" : 70004,
"walletversion" : 60000,
"balance" : 43.67411264,
"blocks" : 518192,
"timeoffset" : 0,
"connections" : 33,
"proxy" : "",
"pow_algo_id" : 1,
"pow_algo" : "SHA256D",
"difficulty" : 4550197735.87287235,
"difficulty SCRYPT" : 4565238321.23421860,
"difficulty SHA256D" : 4550197735.87287235,
"difficulty YESCRYPT" : 395775.61542701,
"difficulty ARGON2" : 57671.75850463,
"difficulty X17" : 27722770.85589155,
"difficulty LYRA2REv2" : 375112875.74920577,
"difficulty EQUIHASH" : 390742.84964733,
"difficulty CRYPTONIGHT" : 32616.68046951,
"moneysupply" : 9615144.54067053,
"testnet" : false,
"keypoololdest" : 1536164182,
"keypoolsize" : 101,
"paytxfee" : 0.00000000,
"relayfee" : 0.00001000,
"errors" : ""
I updated the sources, removed the blocks and again the same thing.
I use the latest source code.
Error in logs
In block explorer - https://chainz.cryptoid.info/btm/
block 518192
Linux cmd -
"version" : 90803,
"protocolversion" : 70004,
"walletversion" : 60000,
"balance" : 43.67411264,
"blocks" : 518192,
"timeoffset" : 0,
"connections" : 33,
"proxy" : "",
"pow_algo_id" : 1,
"pow_algo" : "SHA256D",
"difficulty" : 4550197735.87287235,
"difficulty SCRYPT" : 4565238321.23421860,
"difficulty SHA256D" : 4550197735.87287235,
"difficulty YESCRYPT" : 395775.61542701,
"difficulty ARGON2" : 57671.75850463,
"difficulty X17" : 27722770.85589155,
"difficulty LYRA2REv2" : 375112875.74920577,
"difficulty EQUIHASH" : 390742.84964733,
"difficulty CRYPTONIGHT" : 32616.68046951,
"moneysupply" : 9615144.54067053,
"testnet" : false,
"keypoololdest" : 1536164182,
"keypoolsize" : 101,
"paytxfee" : 0.00000000,
"relayfee" : 0.00001000,
"errors" : ""
I updated the sources, removed the blocks and again the same thing.