Hi
Please have a look at these community articles:-
Link:- https://helpx.adobe.com/aem-forms/kb/vault-fails-to-connect-to-crx-on-aem-6-1-forms-j2ee.html
// When you connect to the J2EE instance of AEM Forms, you need to provide the full path to the JCR Root as follows:
vlt --credentials admin:admin co --force http://<server>:<port>/lc/crx/server/crx.default/jcr:root/
Link:-https://forums.adobe.com/thread/1104533
// Try with [1]
[1] vlt -v --credentials admin:admin co http://localhost:23310/Test/crx/server/crx.default
I hope this would help you.
~kautuk
Kautuk Sahni