First off I play on FTB Ultimate Reloaded with some mods added onto it. That being said I added 3 new mods last night which were Minechem, Ars Magica 2 and Random Things(keep in mind I've added mods onto the pack with 0 problems) But when I pressed the launch button on the FTB Launcher it doesn't run. But in task manager it says java is running.
Here's a picture of the FTB console
Here's a picture of the FTB console