phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6ddb84f1157edae337d11ff4c5fed049' 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 ('6ddb84f1157edae337d11ff4c5fed049', -1, 1770527072, 1770527072, '00000000', -501, 0, 0)

Line : 187
File : sessions.php