Mobile Toggle menu Shows plain white, help

my website mobile toggle menu shows plain white which interferes with the white background of my website. How can I change the three stroke color to black as it used to be.

As seen here

The perfect one before it went plain: https://www.thecityceleb.com/wp-content/uploads/2024/01/Toggle-Bar-Perfect.jpeg

The one with issues now: https://www.thecityceleb.com/wp-content/uploads/2024/01/toggle-bar-with-issues.jpeg

The page I need help with: [log in to see the link]