Hi – sorry to hear you are experiencing difficulties.
There actually is already a Find Events button – and, though you cannot see it, it is actually present on the page – but your theme’s stylesheet contains a rule that explicitly hides it:
.tribe-events-ical, html .tribe-events-button, html #tribe-events .tribe-events-button {
display: none;
}
You can find this on lines 1985-1987 of that file (ie, your theme’s main style.css file). Is there a reason you need this/could you simply remove or modify that line, or ask whomever added it (your designer?) to do so?
I hope that helps 🙂