ok so me and a friend both have all the mods we wanted and she made a hamachi server and put the mods in the server, and i repeat, i have the mods, and it works awesome on the server, we tested it out and we have a series on it. and for some reason when ever i go to play it on singleplayer, my minecraft crashes while keep saying building minecraft terrain and it doesnt respond. its been like this for a while, what should i do? please help. my brothers wont help me nor my mom xc