EnderIO: Found the following problem(s) with your installation:
* The RF API that is being used (1.7.10R1.0.2 from <unknown>) differes from that that is reported as being loaded (1.7.10R1.0.13B1 from extrautilities-1.2.12.jar).
It is a supported version, but that difference may lead to problems.
* An unknown AE2 API is installed (rv3 from appliedenergistics2-rv3-beta-6.jar).
Ender IO was build against API version rv2 and may or may not work with a newer version.
This may have caused the error. Try reproducing the crash WITHOUT this/these mod(s) before reporting it.
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This is what the error looked like. I got the same error, but four months later. My account was just created, and I am just a child, so I do not know what to do to solve the problem either. The chisel thing was probably not part of the error:
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Chisel: Errors like "[FML]: Unable to lookup..." are NOT the cause of this crash. You can safely ignore those errors.
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...It was a coincidence.
(The bold letters are the red lines of code)