@mymoggy It looks like your theme features its own AMP reader more templates, which have reported validation errors in relation to the amp-sidebar component. You can see more on this here.
To confirm the issue is with the theme as opposed to any of your active plugins can you check for the same issue after temporarily activating a default WordPress theme?
I followed the link and I’ve seen it. Ease I don’t know how to code so what do you suggest I do to fix this problem?
@mymoggy You will have to contact the theme developer, as they have implemented the AMP sidebar into their own AMP templates.
If you want to revert to the plugins original AMP templates you can also rename the amp folder within your active themes directly.
I have no idea how to code. I think the best option is to contact them.
But can help me through, maybe I can revert to the theme original amp plugins
@mymoggy In that case it may be best to contact the theme developer. They’ve implemented their own amp components into their reader mode templates.