Algolia DocSearch doesn't response search result

The website uses DocSearch to search page content. At the beginning time, DocSearch worked perfectly, but recently it can not return the search result.

The website use the following JS library:

and the search script code is like this:

    apiKey: 'e7d7fcfb5ab7b179b4e5424f16404c6a',
    indexName: 'gitbeijing',
    inputSelector: '#algolia-doc-search',

I don’t know how to fix the problem, please check the website and help me out of the trouble.

The issue has been solved through changing the gitbeijing configuration file:

Thank you DocSearch software engineer!