Compiled PHP

Dear Friends
I did install LiteSpeed, But after Switch to LiteSpeed, my website that is by WHMCS show problem incorrect.
But, After switch to APACHE it's ok!
What is Problem? How can using PHP build of EasyApache into LiteSpeed?
Thank you

The file /home/userhost/public_html/whmcs/index.php is corrupted.
The file /home/userhost/public_html/whmcs/admin/index.php is corrupted.
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