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 ('2d3537e02fe6945a86f2ac4a4179ef09', -1, 1713566569, 1713566569, '038a8a90', -7, 0, 0)

Line : 187
File : sessions.php