NOTICE Need help plss how can i fix this

help me plss how to fix this : Script[gamemodes/1.1.amx]: Run time error 19: "File or function is not found"

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Loaded log file: "server_log.txt".
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SA-MP Dedicated Server
----------------------
v0.3.7-R2, (C)2005-2015 SA-MP Team

[13:29:35] password = "" (string)
[13:29:35]
[13:29:35] Server Plugins
[13:29:35] --------------
[13:29:35] Loading plugin: streamer.so
[13:29:35]

*** Streamer Plugin v2.9.1 by Incognito loaded ***

[13:29:35] Loaded.
[13:29:35] Loading plugin: mysqlR7.so
[13:29:35] plugin.mysql: R20 successfully loaded.
[13:29:35] Loaded.
[13:29:35] Loading plugin: gvar.so
[13:29:35]

*** GVar Plugin v1.3 by Incognito loaded ***

[13:29:35] Loaded.
[13:29:35] Loading plugin: sscanf2.so
[13:29:35]

[13:29:35] ===============================

[13:29:35] sscanf plugin loaded.

[13:29:35] (c) 2009 Alex "Y_Less" Cole

[13:29:35] ===============================

[13:29:35] Loaded.
[13:29:35] Loading plugin: nativechecker.so
[13:29:35] Loaded.
[13:29:35] Loaded 5 plugins.

[13:29:36]
[13:29:36] Filterscripts
[13:29:36] ---------------
[13:29:36] Loading filterscript 'UltraHost.amx'...
[13:29:36] Loading filterscript 'Debug.amx'...
[13:29:36]
*********************
* SA:MP DEBUG 0.2 *
[13:29:36] * By Simon Campbell *
*********************
[13:29:36] * Version: 0.5c *
*********************
[13:29:36] * -- LOADED *
*********************

[13:29:36] AllowAdminTeleport() : function is deprecated. Please see OnPlayerClickMap()
[13:29:36] Loading filterscript 'netstats.amx'...
[13:29:36]
--Admin Netstats FS loaded.

[13:29:36] Loaded 3 filterscripts.

[13:29:36] Error: Function not registered: 'IRC_GetUserChannelMode'
[13:29:36] Error: Function not registered: 'IRC_Connect'
[13:29:36] Error: Function not registered: 'IRC_CreateGroup'
[13:29:36] Error: Function not registered: 'IRC_SetIntData'
[13:29:36] Error: Function not registered: 'IRC_Quit'
[13:29:36] Error: Function not registered: 'IRC_DestroyGroup'
[13:29:36] Error: Function not registered: 'IRC_Say'
[13:29:36] Error: Function not registered: 'IRC_AddToGroup'
[13:29:36] Error: Function not registered: 'IRC_SendRaw'
[13:29:36] Error: Function not registered: 'IRC_JoinChannel'
[13:29:36] Script[gamemodes/1.1.amx]: Run time error 19: "File or function is not found"
[13:29:36] Number of vehicle models: 0