This is a bug that happens in Slide in versions 4.2.0 and before. Update to 4.2.2 or further to fix it.
You have a different solution? A short tip here would help you and many other users who saw this issue last week.
- java.net.UnknownHostException: images.rgw-lb01.cloud.bstelecom.ru: > unknown error at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) at java.net.InetAddress.getAllByName0(InetAddress.java:1276) at java.net.InetAddress.getAllByName(InetAddress.java:1192) at java.net.InetAddress.getAllByName(InetAddress.java:1126)