Why wont Technic Launcher launch

[mufinn17]

Whenever I open Technic Launcher it brings me to the login screen, then when I login nothing happens, or sometimes the login screen wouldn't even come and nothing would happen. Instead, this file comes in my folders

Also, before when it would let me in earlier today, tekkit wouldn't launch. It would open up minecraft then a few seconds later it brought me back to the tekkit launching page.

Please help.

hs_err_pid10124.log

[Munaus]

post the log

logs can be found when clicking the Cog-Wheel button on the top right corner on the launcher window.
If you can't open the launcher the logs can also be found inside %appdata% -> Roaming -> .technic -> logs

Paste the content on pastebin.com or paste.ubuntu.com and give the link.

 

[mufinn17]

http://paste.ubuntu.com/11170599/
 heres my log

[Munaus]

[ForgeModLoader] Unable to launch
 [INFO]  java.util.ConcurrentModificationException

Google LexManos's JavaLegacyFixer, put the file inside the mods folder of your modpack

[mufinn17]

Thanks so much. Also, would u know how to help me to get my tekkit running, because it's still having the same issues.

[mufinn17]

or like, how do u get onto the servers because its not working

[Munaus]

Does the Tekkit modpack download or not? You're not giving me much information here.

What do you mean by "how to get onto servers"? Can you not find the Multiplayer button on the Minecraft window or what?

[mufinn17]

The tekkit modpack downloads but whenever i try to connect to a server ip it doesn't work

 

[mufinn17]

http://gyazo.com/043e21bd4b84cf633e5e8f04a4edd29a