Revision db31e235-6050-4ef0-a0e4-f681d085edcb

I added css on my website. One is bootstrap and one is a custom css.
I addedd it on my Magento_Theme folder (inside `layout/default_head_block.xml`)

    <css src="css/bootstrap/css/bootstrap.css" order="100" />
    <css src="css/reflexmania2-custom.css" order="100" />     

suddenly there was a problem on these css. They are not loaded in the frontend css inside the HEAD tag.


i tried cleaning cache, generated folders, view_preprocessed and then running
 
    setup:upgrade
    setup:di:compile
    setup:static-content:deploy 

but nothing. they are not loaded.

they are compiled because i can see inside my pub/static folder.

i'm getting crazy. How can i solve this problem?

Thanks for help



EDIT: 1 --> added xml default_head_blocks.xml
    
     <?xml version="1.0"?>
    <page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <head>
        <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=no"/>

     <css src="css/bootstrap/css/bootstrap.css" order="100" />
     <css src="https://use.fontawesome.com/releases/v5.4.1/css/all.css"  src_type="url" order="100" />
     <css src="css/reflexmania2-custom.css" order="100" />

    </head>
    </page>


Some notes: inside my Pub/static folder i have got all my css and layout.they are not working nor called from my theme. If i restore a previous version of my theme is the same. I think that there is some problem on pub static or some permission but i cannot understand where.