gridview - Drupal gets HTTP Result Code: 403 when try to change title of view to

Question

I can't change the title of a drupal view to none. Some views already have title none but I can't change the title of some others. The view that I am having this error has a grid format. This is the error I get:

An AJAX HTTP error occurred.
HTTP Result Code: 403
Debugging information follows.
Path: https://covid-19-charts.ca/admin/structure/views/ajax/display/charts/block_1/title
StatusText: Forbidden
ResponseText: 
403 Forbidden
403
Forbidden
Access to this resource on the server is denied!
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After a few of these errors I got a security warning to which I had to reply that I was not a robot!

标签： gridviewviewdrupal-7