Nuclear reactor crashses tekkit? [WHITESCREEN]

[Wrotepb]

So when i make a nuclear reactor, my tekkit says saving chunks and it goes white screen. ( when i setted up the thermal monitor ) it started crashing.

any help?

[Wrotepb]

and please say do i need to use tekkit lite, tekkit classic etc

[Kiwi_EXE]

If you are on 3.1.3 Classic, it is a bug with IC2 Reactor control, to fix it you need to delete it from the mods folder and install v.1.1.11 from here or just downgrade to 3.1.2 (which could damage your worlds, backup first as always)