Creating costum dagger doesn't go well

i want to increase the variety of dagger in starbound since the dagger in the game is not cool enough and wielding two katana in my hand is cool so i trying to make a costum dagger from a broadsword katana and it not go well the game crashes when i try to open it in attempt to make the first dagger

if there any wrong please tell me i still learning about making costum weapon

The Codes for the first sword :
{ "itemName" : "Muramasa",
"price" : 1000,
"level" : 10,
"maxStack" : 1,
"rarity" : "essential",
"description" : "Once drawn, it can't return to it's sheath without tasting blood",
"shortdescription" : "Muramasa",
"tooltipKind" : "base",
"category" : "dagger",
"twoHanded" : false,
"itemTags" : ["weapon","melee","dagger"],

"inventoryIcon" : "muramasa.png",
"image" : "muramasa.png",
"animation":"/items/active/weapons/melee/dagger/
"elementalType" : "fire",
"primaryAbility" :
{"scripts" : ["/items/active/weapons/melee/meleeslash.lua"],
"class" : "MeleeSlash",
"firePosition" : [15.5, 4.5],
"fireTime" : 3.3,
"baseDps" : 100,
"damageConfig" : {
"damageSourceKind" : "dagger",
"statusEffects" : [burning],
"knockbackMode" : "aim",
"knockback" : 10,
"timeoutGroup" : "primary"}}
}
"builder" : "/items/buildscripts/buildunrandweapon.lua"