phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b485c91b09db58aedd29a30246ce052f' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('b485c91b09db58aedd29a30246ce052f', -1, 1771193977, 1771193977, 'd849d87b', -9, 0)

Line : 180
File : /www/includes/sessions.php