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 ('abd3e718c3a92f8e08d83b3b26d57736', -1, 1714658724, 1714658724, '0391b29d', 20, 0)

Line : 158
File : sessions.php