Hi Theme Nectar, I am restyling an old site, every time I save the page a line is created by itself with this content. I searched online what it was, I thought it was a virus, but unfortunately I can't remove it. Can you please help me?

I paste here the content of the line that creates itself

<audio class="audio-for-speech"></audio>
<div class="translate-tooltip-mtz translator-hidden">
<div class="header">
<div class="header-controls">Translator</div>
<div class="header-controls"></div>
<div class="header-controls"></div>
</div>
<div class="translated-text">
<div class="words"></div>
<div class="sentences"></div>
</div>
</div>
<audio class="audio-for-speech"></audio>
<div class="translate-tooltip-mtz translator-hidden">
<div class="header">
<div class="header-controls">Translator</div>
<div class="header-controls"></div>
<div class="header-controls"></div>
</div>
<div class="translated-text">
<div class="words"></div>
<div class="sentences"></div>
</div>
</div>