possible css validator issue

I have reviewed this error and I believe this is an issue with the
validator as using css variables are valid colors.

http://jigsaw.w3.org/css-validator/validator?uri=https%3A%2F%2Fbootybrotherswestern.com%2F&profile=css3svg&usermedium=all&warning=1&vextwarning=&lang=en

Sorry! We found the following errors (1)
URI : https://bootybrotherswestern.com/style.css?v=20210714
364 header .flex-block.btns-container .top-bot-container .top
..locations-container .location a:hover svg var(--color1) is not a valid
color 3 or 6 hexadecimals numbers : var(--color1)


Thanks,
Paul Grothmann | CEO
Email: paul@w3nerds.com | Website: www.w3nerds.com

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