.jar and manual install error

[gottem1091901]

Cannot Install currently, donator version for both.

Error:
Failed to download file.
Name: netty-handler-proxy-4.1.76.Final.jar
URL: https://repo.maven.apache.org/maven2/io/netty/netty-handler-proxy/4.1.76.Final/netty-handler-proxy-4.1.76.Final.jar
Error details: Could not resolve host: repo.maven.apache.org
Filename on disk: netty-handler-proxy-4.1.76.Final.jar
Path: C:\Users\burto\AppData\Roaming.minecraft\libraries\io\netty\netty-handler-proxy\4.1.76.Final\netty-handler-proxy-4.1.76.Final.jar
Exists: Nonexistent

[Dyiing]

Your computer is blocking the file from being downloaded. Edit firewall/av settings or click the URL to download the file and place in Path: