Thanks for helping out, the mixed language issues are a WPML issue and they are working on a solution. I have now fixed all the redirect issues and 404. The sitemaps were not submitted to I manually uploaded them to Search Console. I hope all is on track for now, thanks for your time.
Hello, thanks but there are still some issues,
https://ninabuschmann.com/de/effektive-online-kurse-via-skype - the first part of page shows up in English, then German, at the end English again.
Can you please tell me how the plugin is creating these random changes? Makes me a bit afraid to keep using it as I’m not sure when these effects will reappear and how to control them
https://ninabuschmann.com/de/englisch-online-lernen-via-skype - same problem, both languages on one page
https://ninabuschmann.com/de/ihre-sprach-und-reiseexpertin - same problem, both languages on one page
https://ninabuschmann.com/de/learning-german-online-de/unglaublich-praktische-ressourcen-zum-thema-deutsch-online-lernen -in English only
“Meine Bücher - Wo bitte gehts hier um die Welt? - Rezensionen” - goes back to English startpage
“Kontakt” - shows only English contact page
“Online Unterricht - Alleine Reisen als Frau” - only in English
What changes are you making, how to change the redirection rules in RM? Can I also switch it off in the plugin and use another redirection plugin?
New problem:
If I want to do a speed test on GT Metric or pagespeedinsights I get 404 error message (even though I can open the page)
Lighthouse returned error: ERRORED_DOCUMENT_REQUEST. Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. Status code: 404.