phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1af1a109e59993a05d967a8b08a07f20' 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 ('1af1a109e59993a05d967a8b08a07f20', -1, 1756868537, 1756868537, 'd849d879', -9, 0, 0)

Line : 187
File : sessions.php