I think it my be a connection problem. Hear is the debug.
Error making tracking request: java.io.IOException: Error writing to server
Error writing to server: java.io.IOException: Error writing to server
Connection reset: java.net.SocketException: Connection reset
[i18n] Checking for updates ...
[i18n] enUS English language file loaded!
C:\Program Files (x86)\FTBLauncherLog.txt (Access is denied): java.io.FileNotFoundException: C:\Program Files (x86)\FTBLauncherLog.txt (Access is denied)
[i18n] Added 0 enUS to options pane
[i18n] enUS English language file loaded!
Error writing to server: java.io.IOException: Error writing to server
Failed to load modpacks, loading from backup: java.io.IOException: Error writing to server
Loading modpack information for modpacks.xml...
Failed to read modpack file - falling back to direct download: java.io.FileNotFoundException: C:\Users\Steele\AppData\Roaming\ftblauncher\ModPacks\modpacks.xml (The system cannot find the file specified)
Completely unable to download the modpack file - check your connection: java.io.IOException: Error writing to server
loading map information...
loading texture pack information...
Connection reset: java.net.SocketException: Connection reset
[i18n] Could not retrieve version info, skipping update.: java.io.IOException: Error writing to server
Error writing to server: java.io.IOException: Error writing to server
Connection reset: java.net.SocketException: Connection reset