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 ('828dac0d94ca05d4ba4b329b6d527976', -1, 1713926940, 1713926940, '038ec5d4', -1, 0, 0)

Line : 187
File : sessions.php