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Site is down with error 500.19: Configuration file is not well-formed XML

Pablo Alvarez

Updated October 31, 2024 17:24

Plesk for Windows kb: technical

Applicable to:

Plesk for Windows

Symptoms

A website fails to load, with error 500.19

Configuration file is not well-formed XML

Cause

The site's web.config file is invalid.

Resolution

Correct the invalid web config.

It's located at %plesk_vhosts%example.com\httpdocs\web.config
Online validators can help with the troubleshooting.

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