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Try using something like Optifine or Lunar Client to test it

its been a while since ive seen a 1.7.10 crashlog, make sure you have all the mod dependency's installed into the right place, i think 1.7 still uses the coremods folder for some stuff, if you made the pack by hand it might be an idea to remove half the mods and see if it starts up, if so then add them back in 1 by 1 until it crashes again