RUU Error 155 Htc one m8

Hi all,

I have installed a custom recovery on my ATT HTC One M8. It is rooted and I am trying to install an OTA update. I am fairly new to this and I need help. I can try provide any information necessary. I am currently on 4.28.502.1 and the OTA update is 4.28.502.2. I keep getting ERROR 155 and I don't know what I am doing wrong. Thank you