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 ('b45fe26b03f1918ce9373d4da359203d', -1, 1748768407, 1748768407, '030c54ef', -9, 0, 0)

Line : 190
File : sessions.php