Frontend error

Hi.
In frontend I get error (Forbidden) if I save or Save & Close.
In backend works perfectly.
See video attached in wetransfer:
we.tl/LpBF8yFlmE

Joomla 3.8.3
Page Builder 2.0.6

Greetings.

Hi
can you give me an access to your frontend so that I can edit to see the problem of the sidebar.
for the save problem, I have tried by my side and it works ... but you are not the first to tell me about this problem

Can you tell me how you have set your page in front ? with a menu item, from another link, which user are you using ?
CEd

I send you a email with data.
Thanks

received thanks !

ok
1/ the sidebar issue comes from a css of your template, in style.css
html[xmlns] .clearfix {
display: block;
}
2/ the problem comes from a rule (probably on the server) which gives this message "<script> tag in POST"
as if finds some script in the request, it blocks >> to check on your server

The template is created with Template Creator CK .
I do not understand point 2, ¿What should I tell my hosting provider?