Seller will not "activate"

There are two issues I see here.
One is icons missing which means something’s up with finding the icons
The other ones is that the balance has gone low

In this version, you can click the account in the upper right corner and it will send you the faucet to top it up

If you don’t mind, download from here

https://github.com/NeuronInnovations/neuron-node-builder/releases/tag/v1.0.9-test

and give it a spin