phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9a6fb25f6bb64bee7a5a5064349bf368' for key 1

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9a6fb25f6bb64bee7a5a5064349bf368', -1, 1228222933, 1228222933, '26673f3c', 14, 0, 0)

Line : 187
File : sessions.php