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 ('9fbc471943576b7c2d9fd56fc11b0542', -1, 1715296813, 1715296813, '038dc7f3', 2, 0, 0)

Line : 189
File : sessions.php