phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9540e3c34fef1c3f2a3d85c9923b4226' 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 ('9540e3c34fef1c3f2a3d85c9923b4226', -1, 1714312513, 1714312513, 'ac453b5a', -4, 0, 0, '8404a9837885cee26af6951dd3d3d9c9')

Line : 187
File : sessions.php