i didn’t try to do it. i’ve try to reboot my router and problem come ones again but i’ve retry and I managed to send the update. i didn’t understand why of this. my internet connection? boh.
the time I was able to send the update and this is enough for me.
Where you are trying to upload the app TestFlight or Directly to store . and more over just check with the certificates updated or not . because i hope u have been updated Xcode and forgot to update the certificates related to app .