quick fix?

Hi there. I had to install a 3rd party premium plugin for my site (Conditional Checkout Fields for WooCommerce) which had some formatting issues… I provided access to the plugin developer and the changes they made are creating havok with my theme ie. buttons not displaying, tabs in portfolio sorter not showing up… rather than request that they UNDO their edits, I’d prefer not to have them meddle with my site files anymore and potentially make it worse. Is there a way to re-install my theme files and not lose my settings?

If nothing else, be warned that this plugin is a disaster for HighEnd and wont work unless you have the developer “fix it” after install.

Thanks in advance.