Hi Anthony,
Your host has disabled file writing on your server and this is what is causing you the errors and issues.
http://php.net/manual/en/function.is-writable.php
I put this snippet of code and tested your server, and the files are not writable.
Perhaps your host has changed from Apache to LiteSpeed recently (mine did and i had to ask them to allow File-writing
They should be able to modify the settings for you. Here is the Litespeed documentation
http://litespeedtech.com/docs/webserver/config/security
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Script Directory Restricted Permission Mask
Description: Specifies the restricted permission mask of parent directories of script files that the web server will not serve. For example, to prohibit serving PHP scripts in a directory that is group and world writable, set the mask to 022. Default value is 000. This option can be used to prevent serving scripts under a directory of uploaded files.
See man 2 stat for all values.
Syntax: octal numbers
See Also: Script Restricted Permission Mask.