I did a little more research myself, and my next question to you was going to be regarding the version of PHP your local server is running.. Can you tell me what version of PHP you are running on your local server??

I can't locate it now, but I found a post DrByte had made elsewhere which discussed PHP versions and Zen Cart v1.3.9. I'll have to see if I can locate that post (I have to FIRST remember the search string I used to find it in the first place) But I think that until you are testing/running this under the recommended PHP version for Zen Cart 1.3.9 we can't rule out server setup as a possible cause..

I wish that cyberian37's had shared HOW he finally resolved this same issue (it sounds like he eventually resolved the language errors).. It would have been imensely helpful to this process..

In any case I appreciate you sticking with this and continuing to provide DETAILED information.. It will help narrow things down a bit, and once we confirm what the issue is, I can update either the mod or the readme docs accordingly. (depending on the findings..)
Quote Originally Posted by Decostyle View Post
In an attempt to try and isolate where the store goes haywire. I changed the sequence of installation as follows.

Firstly I took out all the edit orders files and uninstalled the SQL. Then...

1. Installed SQL using the admin SQL function, copy and pasted then hit run.
2. Checked admin, all working, no problem
3. Added the TY Tracker file.
4. Checked admin, no problem, clicked on Add tracking number, everything working ok.
5. Added the overwrite core file.
6. Checked admin, TY tracker still working, no problem viewing orders etal.
7. Added the "Install Files" All the files.
8. Now at first I can see the EDIT button and am able to view the order to edit. When I hit the "Add Products" everything goes haywire.

The page goes blank. Error about the language repeatedly comes up. Admin goes totally blank, can't even login. I have to remove all the files for edit order for the admin to go back to normal.

I'm wondering why of all errors it would be pointing to a language error?

The one other thing I need to try is to do it online in a test store to see whether it is the version of PHP that is affecting it. As I said this was being tested on local host which has a lower PHP version than the one required for 1.3.9H. Will report back soon.

Meanwhile hopefully someone else can help test it. This is a very useful module.