Error in opening zip file

[LucarioMcDario]

Hey i have a Problem

every Time i try to install my pack it says "error in opening zip file"

direct Download: dl.dropboxusercontent.com/s/ygepehh460vm4x4/test.zip?dl=1 

 

Native download: dl.dropboxusercontent.com/s/ygepehh460vm4x4/test.zip?dl=0

 

Api: http://api.technicpack.net/modpack/koksrex

 

 

its only optifine (its a test pack)

 

[EvilOwl]

Topic moved to the correct section. This modpack has been deleted earlier so I guess you don't need more help with it.