CTL!

I have a problem when i load the latest version and when i play.It says Minecraft has run out of memory

Hi there! i am here to ask the creator of the modpack "Attack-Of-The-B-Team" to add the mod "Buildcraft".to His/Her modpack. Please can you add it.Almost like every YouTuber uses it.Especially Captain Sparklez he uses it for his amazing modpack "Ultra-Modded-Survival".And as all of you know that Captain Sparklez is the 2nd or 3rd most subscribed Minecraft YouTuber in Youtube. And yeah reduce the FPS issues we all are having.It takes 5 minutes for the modpack to load and 1 single Minute To crash.So please reply and fix the Lag issue.And Goodbye