Parser Mismatched Metadata

Hello guys

Im seeing “Parser Mismatched Metadata”
The parser’s result for this metadata did not match the input metadata. Likely, this was caused by the data being ordered in an unexpected way, multiple values being given for a property only expecting a single value, or property values for a given property being mismatched. Here are the input properties that were not seen in the parsed result: ‘fb:app_id’

error on Facebook debug each time i Fetch new scrape information from it, find out the problem was caused by “facebook comment” plugin, tried many plugins but still same problem, anyone can help? thank you