Client index 0 is invalid
It seems this can happen
L 04/18/2021 - 01:23:26: SourceMod error session started
L 04/18/2021 - 01:23:26: Info (map "emp_cyclopean") (file "C:\Program Files (x86)\Steam\steamcmd\steamapps\common\Empires Dedicated Server\empires\addons\sourcemod\logs\errors_20210418.log")
L 04/18/2021 - 01:23:26: [SM] Exception reported: Client index 0 is invalid
L 04/18/2021 - 01:23:26: [SM] Blaming: lawliet_stats.smx
L 04/18/2021 - 01:23:26: [SM] Call stack trace:
L 04/18/2021 - 01:23:26: [SM] [0] GetClientTeam
L 04/18/2021 - 01:23:26: [SM] [1] Line 113, /builds/sourcemod/lawlietstats/build/../addons/sourcemod/scripting/lawliet_stats.sp::Event_PlayerDeath
L 04/18/2021 - 01:25:35: [SM] Exception reported: Client index 0 is invalid
L 04/18/2021 - 01:25:35: [SM] Blaming: lawliet_stats.smx
L 04/18/2021 - 01:25:35: [SM] Call stack trace:
L 04/18/2021 - 01:25:35: [SM] [0] GetClientTeam
L 04/18/2021 - 01:25:35: [SM] [1] Line 113, /builds/sourcemod/lawlietstats/build/../addons/sourcemod/scripting/lawliet_stats.sp::Event_PlayerDeath