Please keep the following in mind when posting here:

If you have added mods to the modpack yourself, the chances of getting support are very low, however we will try to help.
We will not respond to demands for support, but will happily respond to requests! :)
Crash logs make it a lot more likely that we will be able to solve or provide a work around for your issue!
We may forward your support request to an appropriate third party if the issue is not something we can solve directly.
If you do not provide an crash report (FML log)/screenshots or a detailed description of the issue, no help will be given