Usually, this error comes from using an old PHP version on a live server Or a version of PHP that your project dependencies are not supporting. To solve this, you should upgrade the version of PHP on the live server and check it.
So let’s see how to do it
Step 1: Login to your hosting account and find PHP Configuration or MultiPHP Manager
Depending on your hosting company, you may see PHP Configuration or MultiPHP Manager. you have to choose
Step 2: Update PHP version
In this step, you need to update the PHP version according to your project or Select the version that you are using for the local server.
All is done now have to refresh the page. It may take some time for the PHP version to be completely updated, so be patient.