phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '81a43b5aff1dbc76516bb19904ec559d' 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 ('81a43b5aff1dbc76516bb19904ec559d', -1, 1760340750, 1760340750, 'd849d81d', -4, 0, 0)

Line : 187
File : sessions.php