Well, now, that's a shame ........
Who changed the oil .... ??
If it was the local dealer, I'd take it back to them and have then fix it.
If it wasn't a local shop, just get a new crush washer, drain the oil and refill it.
That oil doesn't look all that new to me ...... maybe it's time for a and filter change anyway ........
PS - doesn't look to me like it has any kind of washer under on drain plug.
humfrz - keyboard oil analyzer