HTTP 500.19 and 500.21: IIS refuses to read your web.config at all
HTTP 500.19 and 500.21 mean IIS cannot parse or is locked out of web.config. Unlock the section, fix permissions and the site loads on the next request.
HTTP 500.19 and 500.21 mean IIS cannot parse or is locked out of web.config. Unlock the section, fix permissions and the site loads on the next request.