My GMPT is not working

[PlexyOnline]

everytime i try to upload my Sound pack part 2 i get this

Executing queue.
Creating addon from C:\Users\Pleb_King_Plex.mogler-PC\Desktop\soundsweps\plex_co_sound_pack_part_2...
Creating temporary addon.json.
Creating temporary gma.
Garry's Mod Addon Creator 1.1
Looking in folder "C:/Users/Pleb_King_Plex.mogler-PC/Desktop/soundsweps/plex_co_sound_pack_part_2/"
lua/weapons/plex_co_pack10.lua
lua/weapons/plex_co_pack11.lua
lua/weapons/plex_co_pack12.lua
lua/weapons/plex_co_pack13.lua
lua/weapons/plex_co_pack14.lua
lua/weapons/plex_co_pack5.lua
lua/weapons/plex_co_pack6.lua
lua/weapons/plex_co_pack7.lua
lua/weapons/plex_co_pack8.lua
lua/weapons/plex_co_pack9.lua
materials/entities/plex_co_pack10.png
materials/entities/plex_co_pack11.png
materials/entities/plex_co_pack12.png
materials/entities/plex_co_pack13.png
materials/entities/plex_co_pack14.png
materials/entities/plex_co_pack5.png
materials/entities/plex_co_pack6.png
materials/entities/plex_co_pack7.png
materials/entities/plex_co_pack8.png
materials/entities/plex_co_pack9.png
sound/weapons/marchingsongs/arrow.mp3
sound/weapons/marchingsongs/baeornah.mp3
sound/weapons/marchingsongs/batmandog.mp3
sound/weapons/marchingsongs/borknumer1.mp3
sound/weapons/marchingsongs/crying1.mp3
sound/weapons/marchingsongs/crying2.mp3
sound/weapons/marchingsongs/funnylaugh.mp3
sound/weapons/marchingsongs/hardknock.mp3
sound/weapons/marchingsongs/♥♥♥♥♥♥♥♥.mp3
sound/weapons/marchingsongs/iphone1.mp3
sound/weapons/marchingsongs/iphone2.mp3
sound/weapons/marchingsongs/iphone3.mp3
sound/weapons/marchingsongs/jellybeans.mp3
sound/weapons/marchingsongs/knowledge.mp3
sound/weapons/marchingsongs/momnothome.mp3
sound/weapons/marchingsongs/mysterysound.mp3
sound/weapons/marchingsongs/no.mp3
sound/weapons/marchingsongs/obamasorry.mp3
sound/weapons/marchingsongs/panda.mp3
sound/weapons/marchingsongs/ppap.mp3
sound/weapons/marchingsongs/♥♥♥♥♥♥.mp3
sound/weapons/marchingsongs/sloth.mp3
sound/weapons/marchingsongs/sound1.mp3
sound/weapons/marchingsongs/sound2.mp3
sound/weapons/marchingsongs/spongebob.mp3
sound/weapons/marchingsongs/trump.mp3
sound/weapons/marchingsongs/♥♥♥♥♥♥.mp3
sound/weapons/marchingsongs/unstoppable.mp3
sound/weapons/marchingsongs/wickedsick.mp3
sound/weapons/marchingsongs/wtfwasthat.mp3
Successfully saved to "temp.gma" [27.8 MB]
Garry's Workshop Publisher 1.1
[Compiled Nov 11 2016 - 19:23:41]
Storage Quota: 1.0 GB total, 997.4 MB free
Opening temp.gma
Compressing.. [27.8 MB] => [26.5 MB]
Deleting addon_uploads/1482956056_3552354771.gma (26.5 MB)...
Sending Addon to Steam..
Couldn't load icon - is it a jpeg?
Deleting temporary gma...
Temporary gma deleted.
Deleting temporary addon.json...
Temporary addon.json deleted.
[WARNING] Creation Failed!
Finished running queue.
Refreshing addon list.
Retreving list of Addons.
ID: 819572944 Name: "Military Candence Sound Swep"
ID: 819643027 Name: "Sound Pack Part 1"
Retrieval Finished!
Finished refreshing addon list.

and in the queue next to my addon it say error! exit status (1)

[zihinselsorun]

use jpg file in photo and it will be need 512x512

[PlexyOnline]

BRUH! your like 4 years late my guy