Help! Everything is offline!

[Sky760]

I downloaded the Technic Launcher to play Tekkit but above every modpack it said OFFLINE,

I tried to play one but it said:

The Mod tekkitmain does not appear to be installed or is corrupt, and is not available for offline play.

My launcher build/version is: 365.

Help!

I even tried to install another mod pack but the same thing!

[TwoTails]

if you have an anti-virus, you need to eather disable it or let Technic through it.