Error php, HELP ME PLS

I am using 000webhost to host my website. When I leave it on PHP version 7.2, I receive this warning: “Composer detected issues in your platform: Your Composer dependencies require a PHP version “>= 8.0.0”.” However, when I increase the PHP version on the site to 8.0.0, the website doesn’t load and displays the message “Unable to fulfill this request at the moment.” Please help me resolve this issue.
It happes at EloJob and get redirect to

Hi! I see no issues with your site, you may want to turn on/off errors rendering from website settings :slight_smile:

Some screenshots may helps as well

when click at “comprar”