The log that you posted shows that the Lightstreamer Server startup procedure has never finished. Indeed it is waiting for Remote Metadata Adapter connections.
Please note that in case of Remote Metadata Adapters the server is blocked waiting for the connections, even in the case you are using the "robust" version unless in the file "adapters.xml" is present this configuration

<param name="first_connection_timeout_millis">10000</param>

that sets a timeout after which the startup procedure continues anyway.

So to solve your problem, if you do not intend to use the Remote Adapters anymore, please remove them from the folder "LS_HOME/adapters", otherwise if you want the Lightstreamer server (including the internal Web Server) starts even before all Remote Adapters are connected sets the <first_connection_timeout_millis> parameter in the <metadata_provider> section of "adapters.xml" configuration files.

I confirm you the message concerning external services does not affect in any way the regular operation of Lightstreamer server.