IllegalArgumentException help

[ruffman8890]

Ok so I made a modpack to troll and have fun with my friends and then i get the infamous "IllegalArgumentException" thing that doesn't allow my modpack to unzip. This is the second time this happened when I make a modpack.Help? Also the modpack is here http://www.technicpack.net/api/modpack/inster-new-nam-hur

[plowmanplow]

• You have included too much in your bin folder. Only the modpack.jar file should be in the bin folder.
• Your Star Wars and OptiFine mods are out of date.
• I was able to add your pack to my launcher and start a SSP world.