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 ('43701a63df0225d5fc4e5476de94f47a', -1, 1714022762, 1714022762, '127476c6', -2, 0, 0)

Line : 187
File : sessions.php