Error in Theme Preview

[NovaAndrom3da]

I noticed the gear button didn't work, so I checked out the devtools console. I found a few errors in the output.

[Error]
Uncaught SyntaxError: missing } after property list
note: { opened at line 1, column 21
https://manilarome.github.io/lightdm-webkit2-theme-glorious/lang/vars.js :1
https://manilarome.github.io/lightdm-webkit2-theme-glorious/lang/vars.js :129

[Output]
Debug!

[Output]
Users Array(6) [ {…}, {…}, {…}, {…}, {…}, {…} ]

[Error]
Uncaught (in promise) ReferenceError: languagePack is not defined
    _getLanguagePack      https://manilarome.github.io/lightdm-webkit2-theme-glorious/js/language.js  :32
    Language              https://manilarome.github.io/lightdm-webkit2-theme-glorious/js/language.js  :9
    _createPowerObject    https://manilarome.github.io/lightdm-webkit2-theme-glorious/js/power.js     :22
    _init                 https://manilarome.github.io/lightdm-webkit2-theme-glorious/js/power.js     :115
    Power                 https://manilarome.github.io/lightdm-webkit2-theme-glorious/js/power.js     :6
    initGreeter           https://manilarome.github.io/lightdm-webkit2-theme-glorious/js/script.js    :44
    <anonymous>           https://manilarome.github.io/lightdm-webkit2-theme-glorious/js/script.js    :85