So I'm using GMPU and have done everything, and then clicked execute. It spit out a data string and said done at the top right but did not add the item to my workshop items. Can someone help me figure out the problem?

Data string:
[CONFIG] Logging Initiallized.
Retreving list of Addons.
Retrieval Finished!
Image for icon selected. Loading and Checking Image...
[WARNING] Image is not 512x512!
Image for icon selected. Loading and Checking Image...
Image is 512x512. Loading preview...
Preview Loaded.
Executing queue.
Creating addon from C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\garrysmod\addons\specimeneight...
Creating temporary addon.json.
Creating temporary gma.
Garry's Mod Addon Creator 1.1
Looking in folder "C:/Program Files (x86)/Steam/steamapps/common/GarrysMod/garrysmod/addons/specimeneight/"
lua/entities/npc_specimeneight.lua
materials/entities/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/npc_specimeneight_killicon.vmt
materials/specimeneight/npc_specimeneight_killicon.vtf
sound/specimeneight/jump.ogg
sound/specimeneight/panic.ogg
sound/specimeneight/pieceofcake.ogg
sound/specimeneight/spring.oga
[Not allowed by whitelist]
sound/specimeneight/stepitup.ogg
sound/specimeneight/tooeasy.oga
[Not allowed by whitelist]
sound/specimeneight/tooslow.ogg
File list verification failed
Creation OK!
Finished running queue.
Refreshing addon list.
Retreving list of Addons.
Retrieval Finished!
Executing queue.
Creating addon from C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\garrysmod\addons\specimeneight...
Creating temporary addon.json.
Creating temporary gma.
Garry's Mod Addon Creator 1.1
Looking in folder "C:/Program Files (x86)/Steam/steamapps/common/GarrysMod/garrysmod/addons/specimeneight/"
lua/entities/npc_specimeneight.lua
materials/entities/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/npc_specimeneight_killicon.vmt
materials/specimeneight/npc_specimeneight_killicon.vtf
sound/specimeneight/jump.ogg
sound/specimeneight/panic.ogg
sound/specimeneight/pieceofcake.ogg
sound/specimeneight/spring.oga
[Not allowed by whitelist]
sound/specimeneight/stepitup.ogg
sound/specimeneight/tooeasy.oga
[Not allowed by whitelist]
sound/specimeneight/tooslow.ogg
File list verification failed
Creation OK!
Finished running queue.
Refreshing addon list.
Retreving list of Addons.
Retrieval Finished!
Executing queue.
Creating addon from C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\garrysmod\addons\specimeneight...
Creating temporary addon.json.
Creating temporary gma.
Garry's Mod Addon Creator 1.1
Looking in folder "C:/Program Files (x86)/Steam/steamapps/common/GarrysMod/garrysmod/addons/specimeneight/"
lua/entities/npc_specimeneight.lua
materials/entities/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/npc_specimeneight_killicon.vmt
materials/specimeneight/npc_specimeneight_killicon.vtf
sound/specimeneight/jump.ogg
sound/specimeneight/panic.ogg
sound/specimeneight/pieceofcake.ogg
sound/specimeneight/spring.oga
[Not allowed by whitelist]
sound/specimeneight/stepitup.ogg
sound/specimeneight/tooeasy.oga
[Not allowed by whitelist]
sound/specimeneight/tooslow.ogg
File list verification failed
Creation OK!
Finished running queue.
Refreshing addon list.
Retreving list of Addons.
Retrieval Finished!
Executing queue.
Creating addon from C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\garrysmod\addons\specimeneight...
Creating temporary addon.json.
Creating temporary gma.
Garry's Mod Addon Creator 1.1
Looking in folder "C:/Program Files (x86)/Steam/steamapps/common/GarrysMod/garrysmod/addons/specimeneight/"
lua/entities/npc_specimeneight.lua
materials/entities/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/npc_specimeneight_killicon.vmt
materials/specimeneight/npc_specimeneight_killicon.vtf
sound/specimeneight/jump.ogg
sound/specimeneight/panic.ogg
sound/specimeneight/pieceofcake.ogg
sound/specimeneight/spring.oga
[Not allowed by whitelist]
sound/specimeneight/stepitup.ogg
sound/specimeneight/tooeasy.oga
[Not allowed by whitelist]
sound/specimeneight/tooslow.ogg
File list verification failed
Creation OK!
Finished running queue.
Refreshing addon list.
Retreving list of Addons.
Retrieval Finished!
Executing queue.
Creating addon from C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\garrysmod\addons\specimeneight...
Creating temporary addon.json.
Creating temporary gma.
Garry's Mod Addon Creator 1.1
Looking in folder "C:/Program Files (x86)/Steam/steamapps/common/GarrysMod/garrysmod/addons/specimeneight/"
lua/entities/npc_specimeneight.lua
materials/entities/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/DEER_LORD.gif
[Not allowed by whitelist]
[Filename contains captial letters]
materials/specimeneight/npc_specimeneight_killicon.vmt
materials/specimeneight/npc_specimeneight_killicon.vtf
sound/specimeneight/jump.ogg
sound/specimeneight/panic.ogg
sound/specimeneight/pieceofcake.ogg
sound/specimeneight/spring.oga
[Not allowed by whitelist]
sound/specimeneight/stepitup.ogg
sound/specimeneight/tooeasy.oga
[Not allowed by whitelist]
sound/specimeneight/tooslow.ogg
File list verification failed
Creation OK!
Finished running queue.
Refreshing addon list.
Retreving list of Addons.
Retrieval Finished!