Have a look at http://php.net/include/

You are trying to include a directory. This can not work. Look in line 126 of your file /home/a9394051/public_html/admin/includes/application_top.php.

Their must be something like:
include('includes/languages/english/');

Change it to:
include('includes/languages/english/file.example');

Include function must point to an file/url, not a directory!

This means your webserver (i.e. apache) is not configured to handle php files correctly.

Could you please post your code? I can only guess you tried something like:

$obj = new Foo();

if (1 == $obj->bar()) continue

Am I right?

Simple but insecure:

chmod 0777 filename