phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ac2ae7aed0938b1d3d2fb89b84f79133', -1, 1714517403, 1714517403, '038aae5f', -8, 0, 0)

Line : 187
File : sessions.php