- Plesk 12.5 for Windows
Unable to access website with the following error message:
HTTP Error 500.19 - Internal Server Error. The requested page cannot be accessed because the related configuration data for the page is invalid.
Detailed Error Information: Module IIS Web Core
Handler Not yet determined
Error Code 0x80070021
Config Error Lock violation
Config File \\\\?\\E:\\vhosts\\example.com\\httpdocs\\web.config
Requested URL http://example.com:80/
Physical Path E:\\vhosts\\example.com\\httpdocs
Logon Method Not yet determined
Logon User Not yet determined
53: <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
54: <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
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.
Unable to open website's Handler Mappings in IIS > Site > example.com with the following error message:
There was an error while performing this operation. Details: Filename: \\\\?\\E:\\vhosts\\example.com\\httpdocs\\web.config Line number: 53 Error: Lock violation
file contains records about invalid handlers.
Create a backup of website's
web.configfile. It is located in
Remove lines from original
web.configthat are mentioned in the error message, lines 53,54 in the example.