phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b79a19879927addebe87131e15bad1ac' for key 'PRIMARY'

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b79a19879927addebe87131e15bad1ac', -1, 1773188184, 1773188184, 'd849d83d', 10, 0, 0)

Line : 186
File : sessions.php