phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('792e8692b457969f3a2ac45046a0f42d', -1, 1715040859, 1715040859, '12dec88f', -4, 0, 0)

Line : 189
File : sessions.php