your problem starts here:

https://github.com/zencart/zencart/b...er.php#L69-L72

now why noreg would have its status changed, i can not really say.

if this was previously working, and now is not, it suggests to me possibly a php change or mysql change by your host. but that's purely a guess; and probably not a good one.

in phpMyadmin you could see the results of:

select * from countries where status = 0;

and see if noreg pops up. better yet, look here:

YOUR_ADMIN/index.php?cmd=countries&page=N

and see if there is a green or red box. change accordingly.

if all else fails, you could comment out lines 71 and 72 above, but that would be a last resort.

hope that points you in a good direction!