What you have pictured makes it look like you are running the free version of the app and the author wants $10 to unlock the OBDII J1850 PWM feature of the app so you can use it at all, which is simply the protocol that your era Ford vehicle uses, not an error code at all.
You should abandon that app and get either the Torque app, or better still Forscan app which has Ford specific codes and features. They both have a free version which does most things, and a paid version which does more.
I assume you are using the phone linked to a wifi or bluetooth dongle plugged into the vehicle's OBDII port? If you are not, if it is just an app on a phone, it might be a scam.