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 ('780b331b965d0fe5aad6e0f3b5e624ed', -1, 1714402353, 1714402353, '12de7885', 7, 0)

Line : 158
File : sessions.php