CSS syntax error in tag ‘style amp-custom’…Please help me get rid of this

Thanks for reaching out, hopefully we can assist. From the URLs I checked on your site I don’t see any validation errors, most likely the plugin’s handled all such errors and the notices within Search Console are stale.

What you can do to check this is use the URL inspection tool to check any individual AMP URL on your site. After doing so please let me know if you encounter any AMP validation errors.

As i am a beginner and havent used any conflicting plugins, I didnt expect this error from the plugin.

The validation errors you highlighted are not issues within the AMP plugin. The AMP plugin helps users achieve AMP valid content, even with plugins that are not AMP compatible. We have more information on how the plugin works on a dedicated FAQs page on the plugin website.

Let me know once you check the above anyway and we an troubleshoot this further.

CSS syntax error in tag ‘style amp-custom’ – malformed media query.
This is the Validation Issues I got after testing the live AMP url of my site https://lpuumslogin.sstalks.com/?amp=1
Please help me get rid of this issue.

Thanks for an update. I’ve checked that URL using the live AMP validator and it looks to be fully AMP valid.

When performing a check of your sites source code using the AMP playground validator I do see this same warning. Note that this is a warning and not an AMP validation error. This doesn’t stop the URL being AMP valid.

Can you check if the same occurs if you temporarily switch themes?

@shubham8749 As we haven’t received a response, I’ll mark this as resolved. Feel free to open a new support topic if you continue to encounter issues, or reopen this topic and we’d be happy to assist. Thank you!