Forbidden error

[soniko62]

Hello!

I installed secured version dcm4che by following this instructions https://github.com/dcm4che/dcm4chee-arc-light/wiki/Secure-Archive-UI-and-RESTful-Services-using-Keycloak and https://github.com/dcm4che/dcm4chee-arc-light/wiki/Installation 

All installed fine, but when i open https://myip:8443/dcm4chee-arc/ui2 and loggin i`m recieve forbidden error page

And wildfly logs me this error:

ERROR [org.keycloak.adapters.OAuthRequestAuthenticator] (default task-1) failed to turn code into token: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

...

Can it be because of using selfsigned sertification on my site?

P.S.I tried this but i dont understand where i must put 

<spi name="truststore">
   <provider name="file" enabled="true">
      <properties>
         <property name="file" value="${jboss.server.config.dir}/dcm4chee-arc/key.jks"/>
         <property name="password" value="secret"/>
         <property name="hostname-verification-policy" value="ANY"/>
         <property name="disabled" value="false"/>
      </properties>
   </provider>
</spi>