phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('e061cc684782396d55019942648a7932', -1, 1414157290, 1414157290, '36f2e5ae', 32, 0)

Line : 315
File : sessions.php