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 ('88e20e310e2b5d7be94f788331e236da', -1, 1714787837, 1714787837, '12df6a64', -10, 0)

Line : 158
File : sessions.php