Not sure if this is the right place to report an issue.

Looks like someone has connected a Flux Plug to an incompatible source of power and the world will not load now.

https://hastebin.com/ayolukutar.scala

Could you ask whoever it is what their setup was?

a flux plug, and a flux point were touching and connected to an powercell by RFTools
so accepting power from and giving power to the same powercell network
the fact that the plug (out) point (in) were touching
one cell was also set to out and another cell set to in
two networks trying to distribute the power with different ideas about it

Closing: Not enough detail, crash report now missing.