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 ('1a30f6e0d82b5f99ecc0194f8dc2c5e6', -1, 1715233410, 1715233410, '12dc4080', 2, 0, 0)

Line : 189
File : sessions.php