#mailboxbug

So I wake up and see that there's some mail waiting for me. I reach the mailbox and click it and... It says I have no mail? The icon is now gone and there's a new quest in my log, but it says there's no mail and I couldn't even read the letter! I have some test characters and one main character...

When I wake up in the morning and check my mailbox I can't see the mail popping up so I can't see my mail I don't know what to do but I think the reason is my mods because I have a lot of mods but I don't know exactly what mod has a problem. please help😭...