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 ('da897c006d92bee5ca9dda24e2b3864e', -1, 1713530427, 1713530427, '038f1180', -6, 0, 0)

Line : 187
File : sessions.php