phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a5cfec0153c171c397b31338cf1f470c' 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 ('a5cfec0153c171c397b31338cf1f470c', -1, 1714126986, 1714126986, '0395ffa2', -4, 0, 0)

Line : 187
File : sessions.php