All my emails are gone. It is all empty. Why is this happening and how can I get them back?

i can speak english too. i dont know why tho. it was all in german on the site i posted it.
<br />the problem is i have my email adress and my password. i just dont get the verfication code to change my password. it never arrives.
<br />the problem was on my series x my friendslist went from 11 around to over 30 over night and i dont know how. i never accepted these "friends" yet they all were in my list suddenly so i asked on reddit and people a-said i should change my password as someone got in and accepted the friends . it makes no sense to me but its the only plausible option i can think off. all i know is i also downloaded the xbox app on my iphone yesterday to chat with someone. but idk how that would lead to such a mess. i dont want friends i never ever heard of in my list or played or anything.
<br />thanks for your trying help
<br />

Dear Charles,
<br />thank you so much for your help. I must update the given information a bit: When I posted this, I thought that only two docs were affected, but in reality there a more - yet, by far not all of them. I can open others, that are filed on that same external drive as well (in the same folder or in others), without any issues. All of them are docx.
<br />I worked on two of them on Dec 9 the last time with Word Microsoft 365, and all was fine. I sent these docs via email back then, but when I try to open them in that email, the same error message appears.
<br />Strangely enough, these docs can be easily opened by another email recipient (android), who tried to file it under a different file name and then sent it back to me, with no positive result, unfortunately. Just now, however, I decided to send the docs to another email address of mine, where I could open them and add a small modification, file them in the cloud and send them back to my inbox - and, gladly enough, it worked, I can open the documents without any issues. What on earth is the issue???
<br />Cheers, Denise
<br />

Greetings,

My name is Rhaine, I'm an Independent Advisor and community member like you.

I am also using Windows 10 pc. Let us work together to sort this out.

I may need to ask you some questions to isolate this issue and provide recommendation.

- How do you access your emails using Outlook app or Outlook.com web?

- What email domain provider you are using is it @Outlook.com/Hotmail or a third-party email address?

The error you are getting is usually happen if there are 2 or more folders have the same folder name.

You can open your emails using a browser or if you are using the app , check the folders that has the same name and delete them.

You need to expand all your folders for you to locate them.

Once deleted you need to delete it as well in the deleted items folder.

I hope the information above helps. Please let me know how it goes.

Have a wonderful day ahead and stay safe.

With Warm Regards,

Hallo Greg,
<br />I gave you a short answer yesterday. My Problem is: I have an account for microsoft and a valid subscription for microsoft 365 which I can use without problems on my Apple iMac. But I cannot use the subscription on my Apple Laptop, which is also registered on the same account. On the Laptop there is a message that I should renew the subscription. And then when I try to correct it on the Laptop, I get the answer that there is no account available with this user name. But on the same homepage by microsoft I can get the information that my account and my subscription are okay. - So this state of affairs means that there is a mistake in the communication between my Laptop and the microsoft 365 administration. For the moment I cannot get any chat oder phone support by microsoft - and the automatically given supports are useless. (I have already deinstalled all office programs on the Laptop and then reloaded it - but without any result for the problem.)
<br />I would be very glad if you can solve this problem or give me an advice for further action or support.
<br />Sincerely
<br />Thomas
<br />

I hate the outlook format that is implemented on my hotmail account , how can I have it back to how it was before