phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2972b0685d709e96e233ef1802e4cb11' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2972b0685d709e96e233ef1802e4cb11', -1, 1781077816, 1781077816, 'd849d98c', -4, 0, 0)

Line : 187
File : sessions.php