Problem with Lucee Websocket

Hi, in the log of the websocket.log I get this message:

“DEBUG”,“http-nio-8888-exec-6”,“04/30/2020”,“13:59:24”,“lucee”,“Failed to register endpoint /ws/echo: Deployment of WebSocket Endpoints to the web application with path in host [Catalina/lucee.paweco.ch] is not permitted due to the failure of a previous deployment”

If i try, the websocket connection fails. Do you have an idea what’s wrong?

OS: centos-release-7-7.1908.0.el7
Java Version: 11.0.4 (AdoptOpenJDK) 64bit
Tomcat Version: Apache Tomcat/9.0.24
Lucee Version: Lucee 5.3.5.92