phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a9a88fd20310e22c2d0bb5e3a17bc2f1' 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 ('a9a88fd20310e22c2d0bb5e3a17bc2f1', -1, 1714563870, 1714563870, 'c0a80201', -1, 0, 0)

Line : 187
File : sessions.php