I got more logs to help solve the problem:
[14:43:28] [Single] Experience : Map[Devias]-(169,61) [ferma2][Alisa](391) Experience: 3254957925 + 8 MonsterClass : 24
[14:43:30] [Bclass][Lego] ReSet SelfDefence [ferma2][Alisa]
[14:43:40] [Single] Experience : Map[Devias]-(166,57) [ferma2][Alisa](391) Experience: 3254957933 + 5288 MonsterClass : 44
[14:43:40] [ferma2][Alisa] Add/Deduct Coin. Type[1] Amount [1.000000] Added By [CItemShop::AddGPMonster]
[14:43:48] [PvP System] Victim:[ferma2][Alisa], Attacker:[Bclass][Lego] - SD[1528] HP[630.000000] -> SD[374] HP[501.000000]
[14:43:49] [PvP System] Victim:[Bclass][Lego], Attacker:[ferma2][Alisa] - SD[6832] HP[434.000000] -> SD[6775] HP[427.000000]
[14:43:49] [Bclass][Lego] (PkLevel = 3) Killed [ferma2][Alisa] (PkLevel = 5) Pos:(2,170,57)
[14:43:49] Killed by User State Victim:[ferma2][Alisa], Murderer:[Bclass][Lego], Dead State (Duel:0, GuildWar:0, SeldDefense:0, GensWar:0)
[14:43:49] [PvP System] Victim:[Bclass][Lego], Attacker:[ferma2][Alisa] - SD[6775] HP[435.000000] -> SD[6702] HP[426.000000]
This player killed Red Dragon (MonsterClass : 44)
He received no drops. And the message on the screen was this: https://prnt.sc/OVkLK1AMtOZy
Sent complete logs into support area