First - you copied the files - but did you also create and restore the database?
If you did then follow this:
First rename the teststore dir to something else. Then make another empty dir named teststore.
Copy the distribution ZenCart files to that dir, create a fresh DB and and install.
Grab the 2 configure.php files(copy) and place them in the original testore where they belong.
Now remname the dir tht you just installed to to something else and the original back to teststore. Restore your DB from your server to this DB with phpmyadmin and you should be good to go.
Review the configure.php file entries to see what is different from the latest install.



