[jewny24]

Hey guys, I got someone to make me a ranking plugin but he kinda disappeared and I don't know how to fix this error. It also crashes my server

L 04/15/2017 - 15:17:52: Error log file session closed.
L 04/15/2017 - 15:27:24: SourceMod error session started
L 04/15/2017 - 15:27:24: Info (map "aim_deagle7k") (file "errors_20170415.log")
L 04/15/2017 - 15:27:24: [SM] Exception reported: Invalid query Handle 0 (error: 4)
L 04/15/2017 - 15:27:24: [SM] Blaming: csgo_rank_system_v2.smx
L 04/15/2017 - 15:27:24: [SM] Call stack trace:
L 04/15/2017 - 15:27:24: [SM] [0] SQL_HasResultSet
L 04/15/2017 - 15:27:24: [SM] [1] Line 175, D:\My Work\SM Plugins\csgo_rank_system_v2.sp::LoadPlayerFn
L 04/15/2017 - 15:27:24: [csgo_rank_system_v2.smx] SQL_TQuery() @ LoadPlayerFn() reported: Malformed packet
L 04/15/2017 - 164:18: SourceMod error session started
L 04/15/2017 - 164:18: Info (map "de_dust2") (file "errors_20170415.log")
L 04/15/2017 - 164:18: [csgo_rank_system_v2.smx] SQL_TQuery() @ LoadPlayerFn() reported: Lost connection to MySQL server during query
L 04/15/2017 - 17:04:18: [csgo_rank_system_v2.smx] SQL_TQuery() @ LoadPlayerFn() reported: Lost connection to MySQL server during query

Do you know if there is anything I could do to fix it? Or explain me what it is?