phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4e5efefab16f111ff17be3648b43f5e5' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4e5efefab16f111ff17be3648b43f5e5', -1, 1770053729, 1770053729, 'd849d89a', 11, 0, 0)

Line : 187
File : sessions.php