If email addresses were found, ask yourself if you really want to publish them.
Enter your contact addresses, for example in the imprint, as follows: mail at siwecos.de / mail @ siwecos.de. However, keep in mind that crawlers are largely able to detect and evaluate such "tricks". E-mail addresses become illegible for crawlers if you store them as graphics. This has the disadvantage that visually impaired visitors to your website cannot have your e-mail address read to them.