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 ('94d3cbd5722b1caafe0f9256b4d00f2f', -1, 1715212757, 1715212757, '12dc01ef', 3, 0, 0)

Line : 189
File : sessions.php