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 ('7be77199b2894e37e8cae1c1eb82f6b0', -1, 1713519376, 1713519376, '12dd8191', -11, 0, 0)

Line : 187
File : sessions.php