Certificate Issue when trying to install plugin

[ElevatorLordship]

When I hit the Install button for MTools v2.0.2 in Blockbench I receive this error

Uncaught Error: unable to get local issuer certificate
at TLSSocket.onConnectSecure (node:_tls_wrap:1674:34)
at TLSSocket.emit (node:events:518:28)
at TLSSocket._finishInit (node:_tls_wrap:1085:8)
at ssl.onhandshakedone (node:_tls_wrap:871:12)

When entering the source link (https://github.com/JannisX11/blockbench-plugins/tree/master/plugins/mesh_tools) I receive this error:
Refused to execute script from 'https://github.com/JannisX11/blockbench-plugins/tree/master/plugins/mesh_tools?_=1719800056019' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
plugin_loader.js:142 Issue loading plugin "mesh_tools": Plugin file empty

macOS Sonoma 14.5
Blockbench 4.10.3

[ElevatorLordship]

I was able to get it to install through Load Plugin From File and loading mesh_tools.js from .zip cloning the GitHub repository; blockbench-plugins-master > plugins > mesh_tools > mesh_tools.js

[JannisX11]

Does it work for other plugins? Any difference if you enable "Use CDN Mirror" in the settings?