phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ac36f9f3f0ddd7d1ac1b6e43d4806de9' 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 ('ac36f9f3f0ddd7d1ac1b6e43d4806de9', -1, 1714400968, 1714400968, '12df6a64', -8, 0, 0)

Line : 187
File : sessions.php