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500 Internal Server Error - tfecs.com
HTTP Status: 500
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Content-Type: text/html; charset=utf-8
Content-Length: 5455
Connection: keep-alive
X-WS-RateLimit-Limit: 1000
X-WS-RateLimit-Remaining: 999
Cache-Control: private
Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET
Date: Mon, 05 May 2025 19:59:22 GMT

HTTP Code 500 Internal Server Error

500 Internal Server Error indicates an internal server error preventing the request from being processed.

When is Code 500 used?

  • When there are failures in server-side code
  • When there are database issues
  • When the server is overloaded

What does Code 500 mean for the user?

The user cannot access the resource, and the website administrator needs to fix the issue.

GET / HTTP/1.1
Host: tfecs.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<title>IIS 10.0 Detailed Error - 500.19 - Internal Server Error</title> 
<style type="text/css"> 
<!-- 
body{margin:0;font-size:.7em;font-family:Verdana,Arial,Helvetica,sans-serif;} 
code{margin:0;color:#006600;font-size:1.1em;font-weight:bold;} 
.config_source code{font-size:.8em;color:#000000;} 
pre{margin:0;font-size:1.4em;word-wrap:break-word;} 
ul,ol{margin:10px 0 10px 5px;} 
ul.first,ol.first{margin-top:5px;} 
fieldset{padding:0 15px 10px 15px;word-break:break-all;} 
.summary-container fieldset{padding-bottom:5px;margin-top:4px;} 
legend.no-expand-all{padding:2px 15px 4px 10px;margin:0 0 0 -12px;} 
legend{color:#333333;;margin:4px 0 8px -12px;_margin-top:0px; 
font-weight:bold;font-size:1em;} 
a:link,a:visited{color:#007EFF;font-weight:bold;} 
a:hover{text-decoration:none;} 
h1{font-size:2.4em;margin:0;color:#FFF;} 
h2{font-size:1.7em;margin:0;color:#CC0000;} 
h3{font-size:1.4em;margin:10px 0 0 0;color:#CC0000;} 
h4{font-size:1.2em;margin:10px 0 5px 0; 
}#header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS",Verdana,sans-serif; 
 color:#FFF;background-color:#5C87B2; 
}#content{margin:0 0 0 2%;position:relative;} 
.summary-container,.content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;} 
.content-container p{margin:0 0 10px 0; 
}#details-left{width:35%;float:left;margin-right:2%; 
}#details-right{width:63%;float:left;overflow:hidden; 
}#server_version{width:96%;_height:1px;min-height:1px;margin:0 0 5px 0;padding:11px 2% 8px 2%;color:#FFFFFF; 
 background-color:#5A7FA5;border-bottom:1px solid #C1CFDD;border-top:1px solid #4A6C8E;font-weight:normal; 
 font-size:1em;color:#FFF;text-align:right; 
}#server_version p{margin:5px 0;} 
table{margin:4px 0 4px 0;width:100%;border:none;} 
td,th{vertical-align:top;padding:3px 0;text-align:left;font-weight:normal;border:none;} 
th{width:30%;text-align:right;padding-right:2%;font-weight:bold;} 
thead th{background-color:#ebebeb;width:25%; 
}#details-right th{width:20%;} 
table tr.alt td,table tr.alt th{} 
.highlight-code{color:#CC0000;font-weight:bold;font-style:italic;} 
.clear{clear:both;} 
.preferred{padding:0 5px 2px 5px;font-weight:normal;background:#006633;color:#FFF;font-size:.8em;} 
--> 
</style> 
 
</head> 
<body> 
<div id="content"> 
<div class="content-container"> 
  <h3>HTTP Error 500.19 - Internal Server Error</h3> 
  <h4>The requested page cannot be accessed because the related configuration data for the page is invalid.</h4> 
</div> 
 
<div class="content-container"> 
 <fieldset><h4>Detailed Error Information:</h4> 
  <div id="details-left"> 
   <table border="0" cellpadding="0" cellspacing="0"> 
    <tr class="alt"><th>Module</th><td>&nbsp;&nbsp;&nbsp;IIS Web Core</td></tr> 
    <tr><th>Notification</th><td>&nbsp;&nbsp;&nbsp;Unknown</td></tr> 
    <tr class="alt"><th>Handler</th><td>&nbsp;&nbsp;&nbsp;Not yet determined</td></tr> 
    <tr><th>Error Code</th><td>&nbsp;&nbsp;&nbsp;0x800700b7</td></tr> 
    <tr class="alt"><th>Config Error</th><td>&nbsp;&nbsp;&nbsp;There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined
</td></tr> 
<tr><th>Config File</th><td>&nbsp;&nbsp;&nbsp;\\?\E:\kunden\homepages\42\d150647168\www\web.config</td></tr> 
   </table> 
  </div> 
  <div id="details-right"> 
   <table border="0" cellpadding="0" cellspacing="0"> 
    <tr class="alt"><th>Requested URL</th><td>&nbsp;&nbsp;&nbsp;http://tfecs.com:80/</td></tr> 
    <tr><th>Physical Path</th><td>&nbsp;&nbsp;&nbsp;</td></tr> 
    <tr class="alt"><th>Logon Method</th><td>&nbsp;&nbsp;&nbsp;Not yet determined</td></tr> 
    <tr><th>Logon User</th><td>&nbsp;&nbsp;&nbsp;Not yet determined</td></tr> 
    <tr class="alt"><th>Request Tracing Directory</th><td>&nbsp;&nbsp;&nbsp;faultRequestLogPath</td></tr> 
   </table> 
   <div class="clear"></div> 
  </div> 
 </fieldset> 
</div> 
  <div class="config_source content-container"> 
    <fieldset> 
    <h4>Config Source:</h4> 
    <pre><code>   13: 			&lt;sectionGroup name=&quot;scripting&quot; type=&quot;System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35&quot;&gt;
<span class="highlight-code">   14: 				&lt;section name=&quot;scriptResourceHandler&quot; type=&quot;System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35&quot; requirePermission=&quot;false&quot; allowDefinition=&quot;MachineToApplication&quot;/&gt;</span>
   15: 				&lt;sectionGroup name=&quot;webServices&quot; type=&quot;System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35&quot;&gt;
</code></pre> 
    </fieldset> 
  </div> 
 
<div class="content-container"> 
 <fieldset><h4>More Information:</h4> 
  This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error. 
  <p><a href="https://go.microsoft.com/fwlink/?LinkID=62293&amp;IIS70Error=500,19,0x800700b7,20348">View more information &raquo;</a></p> 
   
 </fieldset> 
</div> 
</div> 
</body> 
</html>

Whois info of domain

Domain Name: TFECS.COM
Registry Domain ID: 306706426_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.ionos.com
Registrar URL: http://www.ionos.com
Updated Date: 2025-01-06T08:03:25Z
Creation Date: 2006-01-05T05:59:01Z
Registry Expiry Date: 2026-01-05T05:59:01Z
Registrar: IONOS SE
Registrar IANA ID: 83
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.6105601459
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1028.UI-DNS.BIZ
Name Server: NS1105.UI-DNS.COM
Name Server: NS1111.UI-DNS.ORG
Name Server: NS1124.UI-DNS.DE
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-05T19:59:01Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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