EnderIO: Found the following problem(s) with your installation:
* Optifine is installed. This is NOT supported.
* The RF API that is being used (1.7.10R1.0.2 from <unknown>) differes from that that is reported as being loaded (1.7.10R1.0.13 from ImmersiveEngineering-0.7.7 (1).jar).
It is a supported version, but that difference may lead to problems.
This may have caused the error. Try reproducing the crash WITHOUT this/these mod(s)