I was also having a problem with staking. Try adding the following to your EquiTrader.conf file.
addnode=103.252.200.54
addnode=109.202.103.170
addnode=172.110.20.126
addnode=184.164.129.202
addnode=184.75.238.226
addnode=185.13.39.106
addnode=188.212.103.141
addnode=37.187.146.34
addnode=46.160.230.110
addnode=46.4.64.68
addnode=5.80.205.127
addnode=5.9.10.66
addnode=51.179.108.249
addnode=66.110.245.44
addnode=66.222.134.146
addnode=73.9.45.12
addnode=82.223.11.131
addnode=84.234.52.190
addnode=87.98.142.204
addnode=88.208.49.200
addnode=99.136.81.115
I now have at least one input for staking. Hope this helps!