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 ('7a1eae310d26d2bd8d72bbdb0cbe2e1a', -1, 1713439894, 1713439894, '03857742', -10, 0, 0)

Line : 187
File : sessions.php