Trying to use GULP to minify CSS and getting errors

[pixelicous]

Hi,
Working with NPM 8.3.0 and Node 17.3.0

I've cloned the repository
From NPM Install I get

added 835 packages, and audited 836 packages in 3m
15 vulnerabilities (8 moderate, 7 high)

Gulp runs, and starts a local server, but the index.html is all wrong (volt.css) problem most probably

From gulp:dist I get

[01:18:45] Starting 'copy:dist:css'...
Error in plugin "sass"
Message:
node_modules/vanillajs-datepicker/sass/datepicker.scss
Error: Invalid CSS after "...ize-base * math": expected expression (e.g. 1px, bold), was ".div(7, 8);"
on line 53 of node_modules/vanillajs-datepicker/sass/datepicker.scss
from line 27 of src/scss/volt.scss

-shrinked-width: $dp-cell-size-base * math.div(7, 8);

Then

[01:17:55] Error: File not found with singular glob: /my_root_folder/volt-bootstrap-5-dashboard/dist/css/volt.css (if this was purposeful, use allowEmpty option)
at Glob. (/Users/netzerr/gitlab/titan/ui/volt-bootstrap-5-dashboard/node_modules/glob-stream/readable.js:84:17)
at Object.onceWrapper (node:events:510:26)
at Glob.emit (node:events:390:28)
at Glob.emit (node:domain:475:12)
at Glob._finish (/Users/netzerr/gitlab/titan/ui/volt-bootstrap-5-dashboard/node_modules/glob/glob.js:194:8)
at done (/Users/netzerr/gitlab/titan/ui/volt-bootstrap-5-dashboard/node_modules/glob/glob.js:179:14)
at Glob._processSimple2 (/Users/netzerr/gitlab/titan/ui/volt-bootstrap-5-dashboard/node_modules/glob/glob.js:685:12)
at /Users/netzerr/gitlab/titan/ui/volt-bootstrap-5-dashboard/node_modules/glob/glob.js:673:10
at Glob.stat2 (/Users/netzerr/gitlab/titan/ui/volt-bootstrap-5-dashboard/node_modules/glob/glob.js:769:12)
at lstatcb (/Users/netzerr/gitlab/titan/ui/volt-b