Getting "Failed to load resource" Error

We just installed the upfront theme but we're getting this error:

/wp/upfront-dependencies/styles/9a3911360767de0836ce5876089169f5?ver=0.1.5 Failed to load resource

A similar error appears for scripts

We have a separate directory for WordPress. Actually we are using Roots Bedrock stack.

and there is no directory name upfront-dependencies anywhere on the server.