Clicking an order leaves admin and goes to Storefront

[Tapper]

We are running Zen Cart 1.3.8 for 2 web stores. On one site when I click an order it goes to the store front page, not the the order details. There is no way for me to see what is in these orders! On the other site it goes to order details, so it works fine in one site and not the other.

Earlier today I installed ultimate_seo_urls_2.105 in both stores, otherwise we haven't done anything weird.

This is a new site and we've just started testing orders, so I don't know how long it's been broken. But we configure both stores the same way and it works fine in the other one.

TIA

--Pat

[Tapper]

I found the problem: I had installed the previous version of UltimateSEO, then removed it and installed the latest version. Because the v1 had files in a directory that v2 does not use, I didn't clear that dir and left one of the old files there by mistake. I found this out because I decided to remove v2 completely and then I found the errant file. I re-installed v2 and it works great now.