Hello, Nayan Bhanushali,
Thank you for reaching out to us. We apologize for the issue you experienced while using our theme.
To change the XStore logo on the left side of the header in the Beauty & Cosmetics Demo, please go to XStore > Theme Options > Header builder > Multiple headers > Edit the Home page Header. From there, you can modify or remove the logo as desired. For further reference, please refer to the images provided here: https://ibb.co/chNLPpJ and https://ibb.co/YP0vvR7.
We hope this helps.
Best regards,
8Theme’s Team