phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e932a51997e129c937b44ce3a3c1700a' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('e932a51997e129c937b44ce3a3c1700a', -1, 1406879433, 1406879433, '36c4a2ee', 3, 0, 0)

Line : 187
File : sessions.php