Can't add product to category after adding canadapost module

[zmh]

[FONT=Times New Roman][/FONT]Hi,
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I am building a new fresh webstore with zencart 1.5.6a, after adding canadapost shipping module plugin V.153-154created by Dr.Byte and when I try to add a new product I get an error zen_href_link('', 'cPath=1&action=new_product_preview', 'NONSSL'), my log file is clean.
[FONT=Times New Roman][/FONT]This is the first module to install after my clean zencart installation.
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[FONT=Times New Roman][/FONT]The same module and version is working fine with my live site using zencart v.1.5.5f www.crystalstrass.com
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[FONT=Times New Roman][/FONT]Zencart software installed on my local machine using XAMPP
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[FONT=Times New Roman][/FONT]Any help would be appreciated.
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[FONT=Times New Roman][/FONT]Thank you in advance
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[mc12345678]

I would hazard to say that the two are not connected at least if properly installed.

Some questions: what product type was attempted to be added?
Was a product attempted to be added before incorporating the plugin?
What files are currently different from a default install?
What is meant by the log file being clean?
What database is being used in this install? Was it upgraded using zc_install and in reviewing such are you able to modify configuration settings or do you get an error?

[zmh]

Hi,

It was a cleen install and clean database, I created a category and then added one product, it shows fine
Adding canadapost modulle will show this error when you try to add another product or edit the existing one.
Then I redid again the test and reinstalled again a clean version with a new clean database zencart 1.5.6a here I was able to create new category as with the first test but was not able to add a product, same error as my snapshot
Note: - zencart 1.5.6a clean install
- new database, no upgrade
- Canadapost module V.153-154 (Works fine with my live webstore using zencart version 1.5.5f)

- My log folder is showing now an error:
[08-Mar-2019 02:46:42 Europe/Berlin] Request URI: /zen156a/global/modules.php?set=shipping&action=install, IP address: ::1
#1 trigger_error() called at [E:\xampp\htdocs\zen156a\includes\functions\functions_email.php:377]
#2 zen_mail() called at [E:\xampp\htdocs\zen156a\global\modules.php:100]
--> PHP Notice: Email Error: Could not instantiate mail function.<br /> in E:\xampp\htdocs\zen156a\includes\functions\functions_email.php on line 377.