Zanata client 3.8.3 can't push file to server running on WildFly

Error when pushing/pulling files using Zanata client 3.8.3

2016-04-04 14:29:01,926 pool-4-thread-1 INFO - Received invalid content type from the server. Most likely you're hitting an error page or being redirected. Please check the server URL is correct (in zanata.ini and in zanata.xml) and make sure you use the correct address.
2016-04-04 14:29:01,926 pool-4-thread-1 INFO - Wrong content type received: . Content page title: []
2016-04-04 14:29:01,926 pool-4-thread-1 INFO -