[Why the script bonus doesnt work in custom items?]

I was add bonus stats for my custom items but doesn't give the stats

but if i modify the ragnarok original items work some one know about it ?

 

For example this are my codes:

 

18596,Sprout_Hat,Sprout Hat,4,20,,200,,4,,0,0xFFFFFFFF,7,2,256,,70,1,758,{ bonus bAllstats,5; skill "WZ_HEAVENDRIVE",3;  },{},{}  

26000,New_Black_Valkyrie_Helm,New Black Valkyrie Helm,4,20,,200,,4,,0,0xFFFFFFFF,7,2,256,,70,1,1004,{ bonus bAllstats,5; skill "WZ_HEAVENDRIVE",3;  },{},{}

 

How you can see i have the same script code but isn't work in custom items let me show an image of the problem