Possible reason for error lazarus / 38-Networking and Web Programming ---------------------------------------------------------------------- egsuh · 2020-04-20 03:11 I've built my own web-server using fpweb. No problem at all up to now, but suddenly following error occurs this morning.  QuoteThe application encountered the following error:     Error: Error reading wmDC1.Actions: Error reading TFPWebAction.OnRequest: Invalid value for property     Stack trace:     $000000010004CF1A     $000000010004C378     $0000000100047AD3 What are possible reasons and where am I to check? Webserver is running on Windows 10, IIS, CGI module. ---------------------------------------------------------------------- egsuh · 2020-04-20 05:27 I just deleted some webactions not used any more, and it works now.