“Or” Appears in the Middle of my Product Page

For some reason, the word “Or” appears in the middle of the screen, in between Quantity and Add To Cart. I dont know why. I also think that this only appears to be there on Google Chrome, on both Desktop and Mobile versions of it, but not there on others such as Microsoft Edge.

I’m completely unaware why, or of any CSS that could help.

If someone could help me to understand this, that would be great. Thank you.

Random product page linked for reference.

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