Thanks for reporting this. I’ve requested access in reply to your contact form message. However, I’ve just noticed from the error information you supplied that you are working on localhost. So I would need a backup of the site in order to replicate your issue, which you can use a handy migration plugin for, if you have time?
On further inspection of the error logs you provided I saw something that gave me a hint. If your site has a theme or plugin that loads a legacy version of jQueryUI, MT could throw an error before loading the site. The above version may fix that, but it’s a bit of a guess without having an example to play with. If you could let me know if the above version fixes your issue that would be great!
