phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('71083dbfb6bc4b8b2e8ec0c68471fcf5', -1, 1713990253, 1713990253, '038b5217', -1, 0, 0)

Line : 187
File : sessions.php