phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8e4fba91a32e715ee09f2031c5cb672e' 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 ('8e4fba91a32e715ee09f2031c5cb672e', -1, 1768041762, 1768041762, '0aff0001', 120, 0, 0)

Line : 199
File : sessions.php