aiono6509

help! i cant play tekkit with my friends whenever i play it with my friends it just closes theni tried to play singleplayer then i still does that so then i left it open itself just in the main menu then it still happend and when i go on a server it says i need minecraft forge and wont let me in all i have is a short period of time to play on regualr servers so please help i want to play tekkit

Launcher Version: 10.1.3 Operating System: idk Java Version: latest Antivirus Program: none Description of Problem: whenever i go on a server or just plain play sp it closes the entire window just out of the blue Error Messages: whenever i play anything or just plain leave it open it just closes itself out of nowhere Error Log: