[Pandicornio]

I have this problem which simply does not work the plugin, solution?

L 09/23/2018 - 21:45:51: World triggered "Round_Start"
L 09/23/2018 - 21:45:51: [SM] Exception reported: Invalid Handle 0 (error: 4)
L 09/23/2018 - 21:45:51: [SM] Blaming: hl_challenge.smx
L 09/23/2018 - 21:45:51: [SM] Call stack trace:
L 09/23/2018 - 21:45:51: [SM] [0] ArrayList.Length.get
L 09/23/2018 - 21:45:51: [SM] [1] Line 918, C:\Users\Micha\Desktop\hl_challenge.sp::Multi 1v1_OnPostArenaRankingsSet
L 09/23/2018 - 21:45:51: [SM] [3] Call_Finish
L 09/23/2018 - 21:45:51: [SM] [4] Line 586, ./scripting/multi1v1.sp::Event_OnRoundPreStart
L 09/23/2018 - 21:45:51: Starting Freeze period
L 09/23/2018 - 21:45:51: World triggered "Match_Start" on "am_breakout"
L 09/23/2018 - 21:45:52: World triggered "Round_Start"
SourceTV broadcast event: hltv_message
PutClientInServer: no info_player_start on level
L 09/23/2018 - 21:46:05: Team "TERRORIST" triggered "SFUI_Notice_Terrorists_Win" (CT "0") (T "0")
L 09/23/2018 - 21:46:05: Team "CT" scored "0" with "0" players
L 09/23/2018 - 21:46:05: Team "TERRORIST" scored "0" with "0" players
L 09/23/2018 - 21:46:05: World triggered "Round_End"
L 09/23/2018 - 21:46:06: [SM] Exception reported: Invalid Handle 0 (error: 4)
L 09/23/2018 - 21:46:06: [SM] Blaming: hl_challenge.smx
L 09/23/2018 - 21:46:06: [SM] Call stack trace:
L 09/23/2018 - 21:46:06: [SM] [0] ArrayList.Length.get
L 09/23/2018 - 21:46:06: [SM] [1] Line 918, C:\Users\Micha\Desktop\hl_challenge.sp::Multi 1v1_OnPostArenaRankingsSet
L 09/23/2018 - 21:46:06: [SM] [3] Call_Finish
L 09/23/2018 - 21:46:06: [SM] [4] Line 586, ./scripting/multi1v1.sp::Event_OnRoundPreStart
L 09/23/2018 - 21:46:06: Starting Freeze period
L 09/23/2018 - 21:46:07: World triggered "Round_Start"
SourceTV broadcast event: hltv_message
: !challenge
" say "!challenge"
L 09/23/2018 - 21:46:09: [SM] Exception reported: Invalid Handle 0 (error: 4)
L 09/23/2018 - 21:46:09: [SM] Blaming: hl_challenge.smx
L 09/23/2018 - 21:46:09: [SM] Call stack trace:
L 09/23/2018 - 21:46:09: [SM] [0] ArrayList.FindValue
L 09/23/2018 - 21:46:09: [SM] [1] Line 1032, C:\Users\Micha\Desktop\hl_challenge.sp::isInC hallengeQueue
L 09/23/2018 - 21:46:09: [SM] [2] Line 392, C:\Users\Micha\Desktop\hl_challenge.sp::Comma nd_Challenge