SessionManager => Bug fix: use the new location of the getApiUrl function

NodeApp/src/managers/SessionManager.ts

@@ -21,6 +21,7 @@ import GitlabToken               from '../shared/types/Gitlab/GitlabToken';
 import open                      from 'open';
 import { sessionConfigFile }     from '../config/ConfigFiles';
 import TextStyle                 from '../types/TextStyle';
+import DojoBackendHelper         from '../sharedByClients/helpers/Dojo/DojoBackendHelper';
 
 
 class LoginServer {
@@ -293,7 +294,7 @@ class SessionManager {
         }
 
         try {
-            await axios.get(DojoBackendManager.getApiUrl(ApiRoute.TEST_SESSION), {});
+            await axios.get(DojoBackendHelper.getApiUrl(ApiRoute.TEST_SESSION), {});
 
             if ( verbose ) {
                 spinner.succeed(`The session is valid`);