phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3f9935f9b0d9b0d4e7cf9d99d8d16cdc' 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 ('3f9935f9b0d9b0d4e7cf9d99d8d16cdc', -1, 1715164410, 1715164410, 'c0a80201', 2, 0, 0)

Line : 187
File : sessions.php