Hello,
I edited server.xml files
It was
<Server port="8000" shutdown="SHUTDOWN" debug="0">
<Service name="Tomcat-Standalone">
<!--
==============================================================================================================
DEFAULT - Direct connector with no proxy, for unproxied HTTP access to Confluence.
If using a http/https proxy, comment out this connector.
==============================================================================================================
-->
<Connector port="8090" connectionTimeout="20000" redirectPort="8443"
maxThreads="48" minSpareThreads="10"
enableLookups="false" acceptCount="10" debug="0" URIEncoding="UTF-8"
protocol="org.apache.coyote.http11.Http11NioProtocol"/>
has become
<Server port="8000" shutdown="SHUTDOWN" debug="0">
<Service name="Tomcat-Standalone">
<!--
==============================================================================================================
DEFAULT - Direct connector with no proxy, for unproxied HTTP access to Confluence.
If using a http/https proxy, comment out this connector.
==============================================================================================================
-->
<Connector port="80" connectionTimeout="20000" redirectPort="8443"
maxThreads="48" minSpareThreads="10"
enableLookups="false" acceptCount="10" debug="0" URIEncoding="UTF-8"
protocol="org.apache.coyote.http11.Http11NioProtocol"/>
after that the server stopped working.
If I return everything as it was, then everything will start working.
In logs
2018-11-21 01:44:37,257 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:45:07,258 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:45:37,259 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:46:07,261 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:46:37,262 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:47:07,264 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:47:37,265 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:48:07,266 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:48:37,268 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:48:47,008 WARN [Caesium-1-2] [impl.schedule.caesium.JobRunnerWrapper] runJob Scheduled job LaasPerformanceLoggingJob#LaasPerformanceLoggingJob completed unsuccessfully with response JobRunnerResponse[runOutcome=ABORTED,message='LaaS performance logging is turned off']
2018-11-21 01:49:07,269 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
2018-11-21 01:49:37,270 WARN [synchrony-interop-executor:thread-3] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] pollHealthcheck Could not ping the synchrony-proxy [http://127.0.0.1:80/synchrony-proxy/healthcheck]: Connect to 127.0.0.1:80 [/127.0.0.1] failed: Connection refused (Connection refused)
