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) VALUES ('86d2a762d2c4b6e68340b14107928266', -1, 1714523643, 1714523643, '12742ad0', -11, 0)

Line : 158
File : sessions.php