Unexpected Application Error!

Unable to preload CSS for /assets/index-JtPO44df.css

Error: Unable to preload CSS for /assets/index-JtPO44df.css
    at HTMLLinkElement.<anonymous> (https://www.theathletesfoot.co.nz/assets/index-Rn4pm893.js:2275:23322)
    at HTMLLinkElement.nrWrapper (https://www.theathletesfoot.co.nz//shop/new-balance?p=2&srsltid=AfmBOoqeythgh7pYQjUbnWT_N2xckGp_R6mRfR0K7A3B3H4IZTnp_Vhr:1263:46)