phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b521cf0fc04b084571d34e04c9f9eda3', -1, 1752215009, 1752215009, '54ccfc03', 2, 0, 0)

Line : 187
File : sessions.php