Page structure issue

Hi, I am facing a very strange issue with my website.

There are a couple of location pages on the website, the layout of these pages automatically changed without anyone working on them. For example: the page title was displayed in the middle of the text, sections were misalligned, information from other locations pages was being displayed etc.

This happened twice on around 3-4 pages and there is also no information about these changes in the Typo3 log.

Below is the link to one of the location pages that was affected. I have also attached a screenshot of the page with the changes that had been made.

URL: https://www.swiss-smile.com/standorte/zahnarzt-buelach/

Does anyone have any information about why this may have happened, what should I investigate and how can I avoid such issues in the future?

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