Duplicated words in Archive page

As you will see on the page I’ve shared, I’m getting errors in the archive preview. Some words are duplicated, and other words are appearing out of nowhere.

For example one Glossary entry says:

“Biomass is organic material derived from natural sources like plants and animals. It contains stored energy which is released as heat or other forms of energy when it is burned or processed.”

But the archive preview displays:

“BiomassBiomass is organic material derived from natural sources like plants and animals. It contains stored More is organic material derived from natural sources like plants and animals.”

Any idea what this could be / a fix?

Thanks

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