HDLF PRODUCTIONS

I followed the link, I did it all and I’m still having the same issue.
Please follow the next link to see what I’m having after I click on the option “Mark as Shipped” and it doesn’t save the information:

https://allstarengraving.com/new/wp-content/uploads/Error.jpg

For some reason, when I mark an order as shipped on the vendors deshboard, it doesn’t save the information… Why is that?

Hi there, I have a question.

When I mark an order as shipped, I have to enter a Tracking Url and a Tracking ID, but once I do it, it takes me to a new page and does not save the data that I just entered…
Please see a print screen here:

https://allstarengraving.com/new/wp-content/uploads/1-8.jpg

It also shows the message “The site is experiencing technical difficulties.” in the bottom of the page.

Why is that???

How do I test this on my store??? I installed it and activated it but I don’t see any new option on the WCMp menu…