After adding new glossary item, words on website disapear

Hello,

I have CM Tooltip Glossary Pro and always when I add a new glossary item, the words which should be highlighted on my website disapear. For example: I have the glossary item “Digitaler Zwilling” (Synonym: “Digitalen Zwilling”) on my page https://www.bross-partner.com/ Does anyone have an idea what this mistake is due to? Thx!

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