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 ('ee5b3f7a8d18ea6c91c22ddaa85b19f4', -1, 1714004573, 1714004573, '127784df', -11, 0, 0)

Line : 187
File : sessions.php