Address is not generating

Technical Support
1

I have installed litecoin on Ubuntu operating system. I am getting following kind of errors when trying to generate address.
2018-02-13 10:43:56 connect() to 188.42.59.116:19333 failed after select(): Connection refused (111)
2018-02-13 10:43:56 connect() to 138.68.16.50:19333 failed after select(): Connection refused (111)

Please help