To ensure the correct operation of different sites on the hosting in NIC.UA, you can choose the version of PHP.
First of all, go to the DirectAdmin hosting panel and select "Select PHP version" in the "Extra Features" section.
The next step is to select from the list the version of PHP that you need, and click the "Set as current" button.
You can also edit some PHP parameters on the hosting,. To do this, go to another section using the "PHP parameters" button.
In the "PHP parameters" section, you can increase the amount of memory (within the tariff plan), the maximum size of the downloaded file, and other parameters.
Please note that the PHP version is selected for the entire hosting account, and not for a separate site. For more information, you can contact support for help.