Self-Made Modpack has FML Errors (Need Help Analysing Log)

[Johnny1023]

https://drive.google.com/file/d/0B3xhdvRkT1ZoVVBTTFBHVHByM1U/view?usp=sharing

The log was too long, so I uploaded it.

 

Basically, my Modpack had a trouble launching entirely. Once it started to load the stock Resouce Pack, it stops, just STOPs (in other words, close without a crash report). I researched, and checked the end of the log, and found this:

Unable to access any field [languageList, field_74816_c, d] on type net.minecraft.util.StringTranslate

cpw.mods.fml.relauncher.ReflectionHelper$UnableToAccessFieldException: java.lang.NullPointerException

Please, if you know a way to fix this, please notify me.

[Ugdhar]

Update to 1.10.2, 1.7.10 is old and no longer supported.

 

http://www.minecraftforge.net/forum/index.php/topic,20.0.html

[Johnny1023]

The thing is, most mods aren't updated yet. I'm just asking to see if anyone can help me analyse the log.