'Description: There was a severe problem during mod loading that has caused the game to fail

cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: binnie.genetics.Genetics'

crash-2017-07-25_08.02.50-client.txt

Update your Java to 1.8

I'm unable to run Minecraft with Java 8. :| Is there any workaround for 7?

No, source compatibility with 1.8 only
https://github.com/ForestryMC/Binnie/blob/master-MC1.11.2/build.gradle#L16