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 ('8d86635fbd0925de9d71ee454654ff6c', -1, 1695727194, 1695727194, '22ef947f', 0, 0, 0)

Line : 187
File : sessions.php