1. Strange Code: if(function_exists('get_search_form')) ...

Problem:

Not Found

Sorry, but you are looking for something that isn't here.
if(function_exists('get_search_form')) get_search_form();

Solution:

In the theme file index.php, a line exists without the php code block. 
Around line 155 or so(different location for some themes):

if(function_exists('get_search_form')) get_search_form();

It should be replaced with: 

<?php if(function_exists('get_search_form')) get_search_form(); ?>

2. Warning: file_get_contents() [function.file-get-contents] ....

Problem:

Warning: file_get_contents() [function.file-get-contents]: URL file-access is disabled in the 
server configuration in /.../wp-content/themes/a_cup_of_coffee_ote008/functions.php on line 791

Solution:

This function is used to check for updates in your wp theme admin page. 
1. Add php.ini to the directory getting this error.
2. content of php.ini:
allow_url_fopen = On

3. base64_encode and base64_decode is frowned upon by some hosts....

Problem:

Some hosting companies will scan all your php code if they find
base64_encode and base64_decode code in any of your php code
they will not allow it to run.

No Solution:

This function is used for our license key at the moment.