Some software requires older version of PHP like 5.6 while other asks for PHP7. If it happens you need either of the versions, you can switch to it from cPanel.
- Log into your cPanel account.
- In the "Software" section, click on the "MultiPHP Manager" Icon.
- Scroll down to the bottom of the page, select your domain from the left side of the screen and you will see an option "PHP Version" with a drop-down menu on the right side. Select the appropriate PHP version from it and click the Apply button.
If will take a few seconds and then your PHP version will change to your selected version.