"processAxisFault() found a null HTTP status" and the program execution stops

After a launching a service on Apache Tomcat 9.0.52 and Axis2 1.8.0 I've got the following error. After this error, nothing happens, just full stop. Where to dig to find the roots of the problem? How to fix it? ERROR org.apache.axis2.transport.http.AxisServlet - processAxisFault() found a null HTTP status from the MessageContext instance, setting HttpServletResponse status to: axis2.http.response.state