phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'adf9b02a2c3109cc0df4e989e379c7e7' 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 ('adf9b02a2c3109cc0df4e989e379c7e7', -1, 1711634735, 1711634735, '2cded48a', 2, 0, 0)

Line : 187
File : sessions.php