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 ('dd5d2fee4d03b2930c12844f4c2f927f', -1, 1711710515, 1711710515, '54ccfc03', -4, 0, 0)

Line : 187
File : sessions.php