icon files missing from theme folder: any alternatives?

[paulvanbuuren]

These files are called from the stylesheet but are missing from the repository:
[url]/wp-content/themes/isoc2017-wp/dist/fonts/bootstrap/glyphicons-halflings-regular.woff2
[url]/wp-content/themes/isoc2017-wp/dist/fonts/bootstrap/glyphicons-halflings-regular.woff
[url]/wp-content/themes/isoc2017-wp/dist/fonts/bootstrap/glyphicons-halflings-regular.ttf

The copyright holder for these font files does not allow for redistribution, see: glyphicons.com.

Solution: investigate for which icons this font file was used and provide alternative solutions, preferably from an icon font in the public domain.