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 ('61c9574c14b57fc2e532e12191d103f1', -1, 1713535191, 1713535191, '038aafb4', -10, 0, 0)

Line : 187
File : sessions.php