Help! Horizons won't start up?

[TheCaptainJay]

Hi, when I first loaded Horizons. It took a long time and came up with this.
http://pastebin.com/Ny8j2AVn
In that long mess, you'll see that it says Severe, and it can't find textures for Ars Magica 2 and Reactorcraft or something. As well, when minecraft loads up it just stops completely. Help!

 

[JamiePhonic]

the texture errors are normal, your problem however, is not. your error log just stops dead. theres nothing to go on :/
in the settings tab of the launcher, check both the "show console" AND "reopen launcher after exiting minecraft" boxes.
this way the launcher will reopen after a crash an you can use the "post to pastebin" button to get a link to the log you can paste here.