Text not center aligned in box


I have been trying to have this text be aligned in the center of the text box, but it is not working and I don’t understand why! Any advice would be helpful and where I can read more information.

Disable superscript text in the type settings.

Thanks for your response! However, it is already at ‘normal’ - it is not a superscript

Okay, then check that there is no line feed character in the text.

What is the line feed?