People crash on join of my server!

Not everyone crashes but some do, some of thos people who crash get this error in their console…


 Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-master'
Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-mysql-master'
Initializing Awesomium..
Failed to load custom font file 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\download\resource\fonts\michroma.ttf'
Type c4_panel of meta class c4_panel undefined!
MetaClass missing for c4_panel
Type c4_view_panel of meta class c4_view_panel undefined!
MetaClass missing for c4_view_panel
No Kinect SDK
Lua JIT is DISABLED!
Unknown command "cl_thirdperson"
JOY_AXIS_X:  mapped to Turn (absolute)
JOY_AXIS_Y:  mapped to Look (absolute)
JOY_AXIS_Z:  unmapped
JOY_AXIS_R:  mapped to Forward (absolute)
JOY_AXIS_U:  mapped to Side (absolute)
JOY_AXIS_V:  unmapped
Advanced Joystick settings initialized
Unknown command "hud_showemptyweaponslots"
Unknown command "sv_backspeed"
Couldn't mount addon - couldn't find file addons/the_admin_gun_136123875.gma
Couldn't mount addon - couldn't find file addons/griffingaming_|_base_content_200290932.gma
Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-master'
Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-mysql-master'
Dopwnload Finished
END: DownloadAddons
Dopwnload Finished
Extraction failed.. Oh oh! (C:/Program Files (x86)/Steam/steamapps/common/GarrysMod/garrysmod/addons/griffingaming_|_base_content_200290932.gma)
END: DownloadAddons
Not loading addon 'addons/the_admin_gun_136123875.gma' - addon header invalid
Couldn't mount addon [THE ADMIN GUN][addons/the_admin_gun_136123875.gma]
Removing bad addon addons/the_admin_gun_136123875.gma
Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-master'
Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-mysql-master'
Not loading addon 'addons/the_admin_gun_136123875.gma' - file doesn't exist
Couldn't mount addon [THE ADMIN GUN][addons/the_admin_gun_136123875.gma]
Removing bad addon addons/the_admin_gun_136123875.gma
Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-master'
Adding Filesystem Addon 'c:\program files (x86)\steam\steamapps\common\garrysmod\garrysmod\addons\pointshop-mysql-master'
Network: IP 25.171.84.25, mode MP, dedicated No, ports 27015 SV / 27005 CL
Connecting to 50.31.23.137:27015...
Server connection did not have the correct challenge, ignoring.
Server connection did not have the correct challenge, ignoring.
Server connection did not have the correct challenge, ignoring.
Server connection did not have the correct challenge, ignoring.
Server connection did not have the correct challenge, ignoring.
Server connection did not have the correct challenge, ignoring.
Retrying 50.31.23.137:27015...
Server connection did not have the correct challenge, ignoring.
Connected to 50.31.23.137:27015

If you understand this and can tell me whats wrong please do, thanks in advance!

[editline]28th January 2014[/editline]

Any ideas?