htaccess dosyana aşağıdakileri ekle

<IfModule mod_security.c>  
  # Turn off mod_security filtering.  
  SecFilterEngine Off  
 
  # The below probably isn't needed,  
  # but better safe than sorry.  
  SecFilterScanPOST Off  
</IfModule> 

<IfModule mod_security.c>  
  SetEnvIfNoCase Content-Type \  
  "^multipart/form-data;" "MODSEC_NOPOSTBUFFERING=Do not buffer file uploads"  
</IfModule>  

<IfModule mod_gzip.c>  
  mod_gzip_on No  
</IfModule>