It looks like you have not defined web application bindings during deployment. There are several ways to do this, but before that I suggest that you read about Application bindings in WAS, especially the paragraph Virtual host bindings for web modules.
Required bindings can be provided either as parameters to install
command of AdminApp or by including binding files directly inside WAR. In some cases WAS can generate default binding for you. For example, to install web application with default bindings you need to provide the following command to wsadmin
(simplified):
AdminApp.install(path_to_your_war_file, [
'-appname', your_app_name,
'-CtxRootForWebMod', [
['.*', '.*', your_app_context_root]
],
'-usedefaultbindings'])
I also recommend deploying application once in WAS console to understand possible bindings.