phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9c15709dfc728fdc2d21abb0e177de7f' 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 ('9c15709dfc728fdc2d21abb0e177de7f', -1, 1714641180, 1714641180, 'c0a80201', -4, 0, 0)

Line : 187
File : sessions.php