Zoning problem of a different kind

[Neiv]

For some reason, I suddenly lost the ability to zone into eastkarana. I can zone to all other places I normally go with no problem. But when I attempt eastkarana, the chatbox tells me "Loading, Please Wait" and the splash screen says "Entering East Karana," then it boots me to the login screen. This is a persistent problem. It is a custom zone that I overwrote long ago (yes, I know . . . I should have used zoneproxy), but it has always worked with no problem up to now. I have other custom zones that are working fine. Any idea why I'd have this issue? Thanks.