I can't Download or Uploade in Worlds Page. HELP!

It happens frome when i joined in aternos. i click on upload/Download button and nothing happens. Help plz i have awsome worlds in my pc!

i know but when i click on it nothing happens. i used anther pc and it worked! idk whats the problem. i think its from adblocker but idk how to turn it off my browser isVivaldi tnx.