Error with SVG Icons created via Fontello

Since yesterday an error occured with self builded icons uploaded from fontello. They are just shown as little squares.
I already tried this: http://kriesi.at/documentation/enfold/enable-cors/ but that doesn’t help. Clearing the cache didn’t help too? I think it is something in the htacces cause that error doesn’t happen on my cloned side.
But these entries there are copied from other websites…I don’t know much about it.

Could you check it if you find the error?

# BEGIN WordPress

# ----------------------------------------------------------------------
# Rewrite from HTTP to HTTPS - if you want to use it, comment it out
# ----------------------------------------------------------------------

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>

# ----------------------------------------------------------------------
# | Compressing and Caching - Version 2017                                                    |
# ----------------------------------------------------------------------

# Serve resources with far-future expires headers.
#
# (!) If you don't control versioning with filename-based
# cache busting, you should consider lowering the cache times
# to something like one week.
#
# https://httpd.apache.org/docs/current/mod/mod_expires.html

<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresDefault                                      "access plus 1 month"

  # CSS
    ExpiresByType text/css                              "access plus 1 year"

  # Data interchange
    ExpiresByType application/atom+xml                  "access plus 1 hour"
    ExpiresByType application/rdf+xml                   "access plus 1 hour"
    ExpiresByType application/rss+xml                   "access plus 1 hour"

    ExpiresByType application/json                      "access plus 0 seconds"
    ExpiresByType application/ld+json                   "access plus 0 seconds"
    ExpiresByType application/schema+json               "access plus 0 seconds"
    ExpiresByType application/vnd.geo+json              "access plus 0 seconds"
    ExpiresByType application/xml                       "access plus 0 seconds"
    ExpiresByType text/xml                              "access plus 0 seconds"

  # Favicon (cannot be renamed!) and cursor images
    ExpiresByType image/vnd.microsoft.icon              "access plus 1 week"
    ExpiresByType image/x-icon                          "access plus 1 week"

  # HTML - Behält die Website eine Stunde im Cache, neues wird erst nach Ablauf einer Stunde
  # angezeigt. Wenn nicht gewuenscht, bei 3600 eine Null eintragen
    ExpiresByType text/html                             "access plus 3600 seconds"

  # JavaScript
    ExpiresByType application/javascript                "access plus 1 year"
    ExpiresByType application/x-javascript              "access plus 1 year"
    ExpiresByType text/javascript                       "access plus 1 year"

  # Manifest files
    ExpiresByType application/manifest+json             "access plus 1 week"
    ExpiresByType application/x-web-app-manifest+json   "access plus 0 seconds"
    ExpiresByType text/cache-manifest                   "access plus 0 seconds"

  # Media files
    ExpiresByType audio/ogg                             "access plus 1 month"
    ExpiresByType image/bmp                             "access plus 1 month"
    ExpiresByType image/gif                             "access plus 1 month"
    ExpiresByType image/jpeg                            "access plus 1 month"
    ExpiresByType image/png                             "access plus 1 month"
    ExpiresByType image/svg+xml                         "access plus 1 month"
    ExpiresByType image/webp                            "access plus 1 month"
    ExpiresByType video/mp4                             "access plus 1 month"
    ExpiresByType video/ogg                             "access plus 1 month"
    ExpiresByType video/webm                            "access plus 1 month"

  # Web fonts

    # Embedded OpenType (EOT)
    ExpiresByType application/vnd.ms-fontobject         "access plus 1 month"
    ExpiresByType font/eot                              "access plus 1 month"

    # OpenType
    ExpiresByType font/opentype                         "access plus 1 month"

    # TrueType
    ExpiresByType application/x-font-ttf                "access plus 1 month"

    # Web Open Font Format (WOFF) 1.0
    ExpiresByType application/font-woff                 "access plus 1 month"
    ExpiresByType application/x-font-woff               "access plus 1 month"
    ExpiresByType font/woff                             "access plus 1 month"

    # Web Open Font Format (WOFF) 2.0
    ExpiresByType application/font-woff2                "access plus 1 month"

  # Other
    ExpiresByType text/x-cross-domain-policy            "access plus 1 week"
</IfModule>

<IfModule mod_deflate.c>
# Insert filters / compress text, html, javascript, css, xml:
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/vtt 
AddOutputFilterByType DEFLATE text/x-component
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/js
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE application/atom+xml 
AddOutputFilterByType DEFLATE application/json
AddOutputFilterByType DEFLATE application/ld+json 
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject 
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/font-woff2
AddOutputFilterByType DEFLATE application/x-font-woff
AddOutputFilterByType DEFLATE application/x-web-app-manifest+json font/woff
AddOutputFilterByType DEFLATE font/woff 
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/x-icon 

# Exception: Images
SetEnvIfNoCase REQUEST_URI \.(?:gif|jpg|jpeg|png|svg)$ no-gzip dont-vary

# Drop problematic browsers
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary
</IfModule>

#Alternative caching using Apache's "mod_headers", if it's installed.
#Caching of common files - ENABLED
<IfModule mod_headers.c>
<FilesMatch "\.(ico|pdf|flv|swf|js|css|gif|png|jpg|jpeg|txt)$">
Header set Cache-Control "max-age=2592000, public"
</FilesMatch>
</IfModule>

<IfModule mod_headers.c>
  <FilesMatch "\.(js|css|xml|gz)$">
    Header append Vary Accept-Encoding
  </FilesMatch>
</IfModule>

# Set Keep Alive Header
<IfModule mod_headers.c>
    Header set Connection keep-alive
</IfModule>

# If your server don't support ETags deactivate with "None" (and remove header)
<IfModule mod_expires.c> 
  <IfModule mod_headers.c> 
    Header unset ETag 
  </IfModule> 
  FileETag None 
</IfModule>

<IfModule mod_headers.c>
<FilesMatch ".(js|css|xml|gz|html|woff|woff2|ttf)$">
Header append Vary: Accept-Encoding
</FilesMatch>
</IfModule>

<FilesMatch ".(ttf|otf|woff)$">
<IfModule mod_headers.c>
Header set Access-Control-Allow-Origin "*"
</IfModule>
</FilesMatch> 

# ----------------------------------------------------------------------
#   Block WordPress files from outside access
# ----------------------------------------------------------------------	

# No access to the install.php
<files install.php>
Order allow,deny
Deny from all
</files>
 
# No access to the wp-config.php 
<files wp-config.php>
Order allow,deny
Deny from all
</files>
 
# No access to the readme.html
<files readme.html>
 Order Allow,Deny
 Deny from all
 Satisfy all
</Files>
 
# No access to the liesmich.html for DE Edition
<Files liesmich.html>
 Order Allow,Deny
 Deny from all
 Satisfy all
</Files>
 
# No error log access 
<files error_log>
Order allow,deny
Deny from all
</files>

#No access to the .htaccess und .htpasswd
<FilesMatch "(\.htaccess|\.htpasswd)">
  Order deny,allow
  Deny from all
</FilesMatch>

# Block access to includes folder
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^wp-admin/includes/ - [F,L]
RewriteRule !^wp-includes/ - [S=3]
RewriteRule ^wp-includes/[^/]+\.php$ - [F,L]
RewriteRule ^wp-includes/js/tinymce/langs/.+\.php - [F,L]
RewriteRule ^wp-includes/theme-compat/ - [F,L]
</IfModule>

# ----------------------------------------------------------------------
#   Switch off the security risk XML-RPC interface completely
# ----------------------------------------------------------------------

### @see https://digwp.com/2009/06/xmlrpc-php-security/

<Files xmlrpc.php>
 Order Deny,Allow
 Deny from all
</Files>

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# Wordfence WAF
<IfModule mod_php7.c>
	php_value auto_prepend_file '/is/htdocs/wp12698195_92KVI3G99T/www/aicomp_group/wordfence-waf.php'
</IfModule>
<Files ".user.ini">
<IfModule mod_authz_core.c>
	Require all denied
</IfModule>
<IfModule !mod_authz_core.c>
	Order deny,allow
	Deny from all
</IfModule>
</Files>

# END Wordfence WAF

# END WordPress
# BEGIN Hotlinking

# END Hotlinking