Dude… Although I’m sorry to hear you are experiencing some issues giving a 1 star rating and leaving the word ‘error’ I wouldn’t call very constructive. I’ve tested the plugin extensively and did not find any issues, did you use debug to see where the problem might lie? At the very least leave more info so I might solve the issue and possibly help others.
@resepan the AMP Related Posts plugin has just undergone a big update, feel free to see if it works for you now.
In any case I have to ask please remove or update your 1 star review if you are not willing to work with me to solve the previous issue. You might not realise just how much time and dedication writing and maintaining a plugin takes and to think people might judge it from a careless review truly brings me down. Thank you.