Thank You Messages Or Helping I Have Messanger 8.1 And I Am Unable To Receive Offline Messages Now. What Can I Do? Archive Is Not Helping.?

I have messanger 8.1 and I am unable to receive offline messages now. What can I do? Archive is not helping.? - thank you messages or helping

I have tried to use the file option, but still not able to see these messages. I've installed Messenger on 3 different teams and I've shown me that the conversation I had with this team, that not all my conversations. What am I doing wrong? It is for me is important to work properly, because my husband abroad, and I am missing your messages. Thanks for any help