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 ('edbbf75b2536e59554d0cad74d5d7635', -1, 1713956096, 1713956096, '038ac842', -10, 0, 0)

Line : 187
File : sessions.php