Wordpress developer to Fix Buggy Plugin

We hired a bad and arrogant and vulgar coder on Freelancer "evgendob", we had issues with the plugin and he refuse to fix it. Now am having issues with my managers because i hired him. The script is appearing in our Meta Description, which is not good for the site and Google. Attached is a screenshot. Please let us know if you have good skills with wordpress and we will send you the plugin the bad coder did. Below is what causes the error: ----------------------------- if( is_single() && $do ){ echo ' <script> ----------------------------- Thank you