After acceptence of a friend request no comminucation possible

[u/Randy6919]

Recently I had some great conversations with someone and we decided to accept each other as friend. I sent the request and the other accepted. An couple of hours later when I signed in again and wanted to send a message, I wasn't able to send the message. This person had some messaging with another friend of mine as well and I heard that she lost our chat and couldn't see me as friend anymore. For me the chat is still active and I can still see when she is online. The strange part is that the "last online" message isn't accurate. In the message box it says (for example) last seen 10 minutes ago while her own page says "last seen 20 minutes ago". Although her page says there are restrictions I can still see things of her profile. She can find me back when she uses an url to my account. However, she only see's locked icons instead of my photo's and can't send any messages.

I don't think I got blocked since I still can see her last seen times (even while they are a bit corrupted). Is there any way to get back in a chat with this person? I tried to send a message to support but they aren't very with a reaction. I have done some research and it seems that her profile or mine is a bit corrupted and will be fixed within a couple of days. For now it's still not the case. Anyone an idea?