cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: net/minecraft/client/renderer/entity/RenderManager
never mind it was ender tech
According to the crash log an error occurred with a mod called advanced finders.
I would post this to there bug reporting site or contact the mod dev.
Keep in mind it may not be that specific mods fault and the error was caused by another mod that loaded first but talking to them is a start.
See my posts here for a possible fix
Antique Atlas Overlay (AntiqueAtlasOverlay-1.7.10-1.2.jar) is also causing an error according to the log...