TECHNICAL ERROR: Details: Error thrown: [object Object] Text status: error Prestashop 1.7

[twolff]

Hi Friends, I have a problem in my new prestashop instalation, on BackOffice when i try change Shipping Methods, it's no possible, the error that it show is 

 

TECHNICAL ERROR: 

Details:
Error thrown: [object Object]
Text status: error

 

Look a print about this error

https://snag.gy/FJXI3B.jpg

Can you help me about it?

 

 

 

 

[Knowband Plugins]

 

This error comes when any ajax request failed. There can be multiple reasons for failing the ajax request.

1. 500 Error (Need to check the server error log for the same).

2. HTTPS & HTTP issue (Might be possible that you have enabled the HTTPS but you are accessing the site on HTTP OR vice versa)