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 ('8739955af94dc3779117ecf2c6a107cb', -1, 1715281893, 1715281893, '0391ad70', 2, 0, 0)

Line : 189
File : sessions.php