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 ('a352a8475b19dc268d21398655c2197a', -1, 1714782400, 1714782400, '12bf05ef', -2, 0)

Line : 158
File : sessions.php