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 ('0f4ded3a0c92af0228bf13d6fcdae7f4', -1, 1714620172, 1714620172, '12778560', -8, 0)

Line : 158
File : sessions.php