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 ('8e2a4a6f1c2d82e6f3e7c2dfce122ac7', -1, 1747788620, 1747788620, '0389951a', 33, 0, 0)

Line : 190
File : sessions.php