Are you using Social Media Auto Publish?
The error you mentioned is returned from Twitter when it hits rate limits. Please share more information if the issue still persists.
Regards,
Anjali
I am using wp twitter auto publish.
Your daily limit when using your own app is 50 requests within a 24-hour period. If you attach images to tweets, it will consume 3-4 API calls per tweet. Therefore, if you plan to post around 50 tweets, consider disabling the image upload option. Instead, use {PERMALINK} in the message format. This will generate a clickable preview with an image on Twitter, provided you are using Twitter cards or Open Graph tags on your website. Otherwise, you may need to upgrade to a paid tier of Twitter (basic/pro, depending on your API requirements – https://developer.twitter.com/en ).
Please let us know if you have any questions.
