MediaWiki API result

This is the HTML representation of the JSON format. HTML is good for debugging, but is unsuitable for application use. Specify the <var>format</var> parameter to change the output format. To see the non-HTML representation of the JSON format, set [https://bandaroncati.wiki.esiliati.org/api.php?action=query&affrom=B&list=allfileusages&format=json <kbd>format=json</kbd>]. See the [[mw:API|complete documentation]], or the [[Special:ApiHelp/main|API help]] for more information.
{
    "batchcomplete": "",
    "continue": {
        "afcontinue": "CUORE_MATTO_in_C-_Tutto_lo_spartito.pdf|234",
        "continue": "-||"
    },
    "query": {
        "allfileusages": [
            {
                "ns": 6,
                "title": "File:Bassi SIb don't.pdf"
            },
            {
                "ns": 6,
                "title": "File:Bassi SIb don't.pdf"
            },
            {
                "ns": 6,
                "title": "File:Bijork+melodia+Bb.pdf"
            },
            {
                "ns": 6,
                "title": "File:Bijork+melodia+Bb.pdf"
            },
            {
                "ns": 6,
                "title": "File:Birds.mp3"
            },
            {
                "ns": 6,
                "title": "File:Branford Marsalis - Mo' better Blues (in fa).mp3"
            },
            {
                "ns": 6,
                "title": "File:CUORE MATTO.mid"
            },
            {
                "ns": 6,
                "title": "File:CUORE MATTO Bb - Tutto lo spartito.pdf"
            },
            {
                "ns": 6,
                "title": "File:CUORE MATTO Eb - Tutto lo spartito.pdf"
            },
            {
                "ns": 6,
                "title": "File:CUORE MATTO IN F - Tutto lo spartito.pdf"
            }
        ]
    }
}{
    "error": {
        "code": "internal_api_error_DBTransactionStateError",
        "info": "[c71caac212f6040761da9c5d] Caught exception of type Wikimedia\\Rdbms\\DBTransactionStateError",
        "errorclass": "Wikimedia\\Rdbms\\DBTransactionStateError"
    }
}
Retrieved from "$'"1"