"Server IP address could not be found " error message

From this February onwards , all my looker studio reports started showing some kind of errors. all my pie charts, bar charts, combo charts and stacked bar charts giving “14wvporwv3q6opmurj0oqleq6joooh6xjsawa6retxc7ni5mnj-h858592233.scf.usercontent.goog’s server IP address could not be found.” error message. all these charts were working fine till last month . i am from India and use Asia-south server.

i tried all the reconnecting, refreshing ,recreating ,but of no use . i even tried making the reports through another account. please share your thoughts on solving these