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 ('5f2a403f5e3d8a99cefe664fe8ef8157', -1, 1715202835, 1715202835, '03836ea9', -4, 0, 0)

Line : 189
File : sessions.php