phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('788ee2a3e900fbc777c83cb5783435dc', -1, 1743633433, 1743633433, '12bf9ed9', 1, 0, 0)

Line : 187
File : sessions.php