Tekkit legends wont start

[JanTuck]

So basicly when i press it the launcher disappear and then reappears a second or two after. Here is my technic logs.

https://puu.sh/tOExa/7cd8336540.log

 

I tried have tried most things now, changed to java 7 from java 8 didnt work. ;/

[profjb]

Your missing files. This may be because the files didn't download correctly.
Try re-installing the pack by clicking 'modpack options', 'reinstall pack'.
If that dosen't work try turning off any firewalls you currently have on. These may be preventing you from downloading the correct files.

If that dosen't work then their is another option but it's not ideal :P.