HTTPChunkInstaller: Field files was not found

[ 3]LogHTTPChunkInstaller: Enumerating manifest files
[ 20]LogJson: Warning: Field files was not found.
[ 20]LogJson: Error: Json Value of type ‘Null’ used as a ‘Array’.

HTTPChunkInstaller is stuck on enumerating files. I am running standard HTTP server with Master.manifest and ChunksV3 folder. Should i use some specific HTTP server with specific responses? bcause as we see response doesnt have json “files” field. What to do? how to run HTTP file server for HTTPChunkInstaller?