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 ('e27ee4b392b643dedff30031b863e875', -1, 1713571129, 1713571129, '030e06c2', -7, 0, 0)

Line : 187
File : sessions.php