phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9ff9e63e89f33486ab1817a3589cb844' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9ff9e63e89f33486ab1817a3589cb844', -1, 1756555389, 1756555389, 'd849d8a4', 2, 0, 0)

Line : 187
File : sessions.php