icon in form button

Hello, I had a button (<i class=”fa fa-ship”></i>), with form with your plugin and now I have updated the plugin and the icon looks bad on the button.

Now this icon does not read the button title.

<i class=”fa fa-ship”></i>

Could you help me put a boat icon in the title of the button?, As before it was seen, thank you so much

The page I need help with: [log in to see the link]