There is an occuring message in the Acronis Access Tomcat logs stating: "Caused by: org.apache.catalina.LifecycleException: The connector cannot start since the specified port value of [-1] is invalid". This message can safely be ignored and this error has no effect on the performance of the product whatsoever. One specific port is set to -1 on purpose, as a security feature, to prevent other service or software from shutting down Tomcat.