You received this error message as the crawler has noticed that there is large difference between the number of records that have been crawled and the number that were originally available.
You'll need re-run the crawler to see if it continues. You can do so by clicking the “Cancel” button and retry.
You can use the aggregateContent: true option during crawling to help get rid of the error. Here’s a link to the documentation around it: Record Extractor | DocSearch by Algolia.
In addition, this documentation may be helpful to understand the issue. You can set the 'maxLostRecordsPercentage' higher in your configuration.
The free DocSearch plan, doesn't include technical web support from the Support team. For further assistance, you can post your question on the Algolia Community Forum or Discord. For front-end issues, you can raise the issue directly on GitHub. In addition, you can review our DocSearch Documentation and FAQ.