domir21
Could you share the URL of that article page?
For the logo, as I can see you're using logo text now, it will change the color between dark/light mode.
With Contact page, it due to your custom css:
.contact .contact-miscinfo .contact-misc {
color: #ffffff !important;
}
This code will force the text of miscinfo in contact page to be always in white.
Kindly check your custom code again.