Hello, for some reason anytime I check my blood pressure I get an error. Is this normal?

Can’t read blood pressure 

anjolaoluwa allen

Nathaniel  Okaiteye-Blessyn 

Dental And Medical Council

Medical doctor

MDs may be found within a wide range of practice settings, including private practices, group practices, hospitals, health maintenance organizations, teaching facilities, and public health organizations.

Doctor of medicine profession

No, this is not normal. It could either mean your apparatus is faulty or your BP is high above recordable.
You need to go to the hospital for them to check with the manual apparatus just to be on the safer side.