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) VALUES ('d3b8e5a7458bc02bcd9e2092a6c40771', -1, 1714331974, 1714331974, '038dc7f3', 21, 0)

Line : 158
File : sessions.php