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 ('683bf318f9494f9cd64388e05a2c8890', -1, 1713893520, 1713893520, '038a725e', -10, 0, 0)

Line : 187
File : sessions.php