! There was an error delivering your message to. (7004)

Was told to submit a bug report for this error I’ve been receiving. For about a week or two, I’ve been getting error 7004 every time I try to message people on my friends list, people I talk to on a daily basis, so I know i’m not just blocked. Not sure if I’m silenced, or what. I’ve reinstalled multiple times, flushed DNS, submitted WinMTR thing, and MSInfo.