Error message

Hello

i try to upload this addon but the shop get med a error message (Invalid XML file)

Did you edit the following line of code in the xml file?
<file name="[b]admin[/b]/orders.app/edit_order.inc.php">
<file name="[b]admin[/b]/catalog.app/edit_product.inc.php">

You must enter the correct path to your Admin folder.
Unzip the archive. And upload only the "save_stay_mod_dt.xml" file.
Download it from here, make the necessary changes and upload it.

yes i edit the following line

you say

Open your website, go to Admin Panel -> vMods
and upload the file from the upload form.
Activate the mod!

But i can not upload the file this way

Mod has been tested and there is no information about bugs.
Please look for the problem on your end.
Mod last tested on LiteCart v2.5.1
Which version are you using?

2.5.1

All fixed and working ;)