snip...
addnode 113.76.7.18 add
addnode 5.167.112.140 add
addnode 84.90.149.57 add
addnode 198.50.160.97 add
addnode 213.46.121.23 add
addnode 213.46.121.23 add
ana@hetz1:~$
12:40:11

Method not found (code -32601)
Looks like you are on Linux there. The code works perfectly on Linux. Have you tried making a .conf file? If so can you post it?