phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4f9ac0e34200e3e79aae314f06e8f2c0' 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, priv_session_id) VALUES ('4f9ac0e34200e3e79aae314f06e8f2c0', -1, 1714165211, 1714165211, 'ac47fe39', 2, 0, 0, '967d1ffa62080936f5c155e7f9902101')

Line : 187
File : sessions.php