While browsing the website you may get an error which will be like this.
You can resolve it by using few simple steps as below.
Step 1: Login to the cPanel and click on File Manager.
Step 2: Open the common.php file. The file path may be /zendf/application/library/functions/common.php or / public_html/cms/application/library/common.php
Step 3: Click on edit option to edit the file.
Step 4: Press Ctrl+F and enter Invalid License under search option. It will show the lines that look like this:
echo "Invalid License";
Step 5: Comment them by putting two forward slashes at the beginning of the line as below.
Step 6: Once done click Save changes button and browse your website. It should work.