phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '73a9476651f44fad193b864609d0294c' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('73a9476651f44fad193b864609d0294c', -1, 1781553188, 1781553188, 'd849d98c', -201, 0, 0)

Line : 187
File : sessions.php