phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ef9c44bf551a1ce4804771cda28f57f4' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ef9c44bf551a1ce4804771cda28f57f4', -1, 1716246821, 1716246821, '038d2a54', -4, 0, 0)

Line : 187
File : sessions.php