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 ('f4c5ad0b64135ad873a8f62fd6c9a455', -1, 1746954746, 1746954746, '54ccfc03', 5, 0, 0)

Line : 187
File : sessions.php