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 format parameter to change the output format. To see the non-HTML representation of the JSON format, set format=json.
See the complete documentation, or the API help for more information.
{
    "error": {
        "code": "internal_api_error_DBTransactionStateError",
        "info": "[2e5a9a767bab34c81bd12aa3] Exception caught: A database query error has occurred. This may indicate a bug in the software.",
        "errorclass": "Wikimedia\\Rdbms\\DBTransactionStateError",
        "*": "Wikimedia\\Rdbms\\DBTransactionStateError at /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/TransactionManager.php(203)\nfrom /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/TransactionManager.php(203)\n#0 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/Database.php(1390): Wikimedia\\Rdbms\\TransactionManager->assertTransactionStatus()\n#1 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/Database.php(936): Wikimedia\\Rdbms\\Database->assertQueryIsCurrentlyAllowed()\n#2 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/Database.php(1708): Wikimedia\\Rdbms\\Database->query()\n#3 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/Database.php(1661): Wikimedia\\Rdbms\\Database->select()\n#4 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/DBConnRef.php(103): Wikimedia\\Rdbms\\Database->selectField()\n#5 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/libs/rdbms/database/DBConnRef.php(312): Wikimedia\\Rdbms\\DBConnRef->__call()\n#6 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/LCStoreDB.php(61): Wikimedia\\Rdbms\\DBConnRef->selectField()\n#7 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/LocalisationCache.php(432): LCStoreDB->get()\n#8 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/LocalisationCache.php(335): LocalisationCache->loadSubitem()\n#9 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/MessageCache.php(694): LocalisationCache->getSubitem()\n#10 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/MessageCache.php(1184): MessageCache->isMainCacheable()\n#11 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/MessageCache.php(1088): MessageCache->getMsgFromNamespace()\n#12 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/MessageCache.php(1060): MessageCache->getMessageForLang()\n#13 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/MessageCache.php(999): MessageCache->getMessageFromFallbackChain()\n#14 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/Message.php(1473): MessageCache->get()\n#15 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/Message.php(970): Message->fetchMessage()\n#16 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/language/Message.php(1053): Message->format()\n#17 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/linker/LinkRenderer.php(289): Message->text()\n#18 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/parser/LinkHolderArray.php(274): MediaWiki\\Linker\\LinkRenderer->makeBrokenLink()\n#19 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/parser/LinkHolderArray.php(158): LinkHolderArray->replaceInternal()\n#20 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/parser/Parser.php(5085): LinkHolderArray->replace()\n#21 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/parser/Parser.php(1713): Parser->replaceLinkHoldersPrivate()\n#22 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/parser/Parser.php(727): Parser->internalParseHalfParsed()\n#23 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/content/WikitextContentHandler.php(301): Parser->parse()\n#24 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/content/ContentHandler.php(1720): WikitextContentHandler->fillParserOutput()\n#25 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/content/Renderer/ContentRenderer.php(47): ContentHandler->getParserOutput()\n#26 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/api/ApiParse.php(150): MediaWiki\\Content\\Renderer\\ContentRenderer->getParserOutput()\n#27 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/poolcounter/PoolCounterWorkViaCallback.php(74): ApiParse->{closure}()\n#28 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/poolcounter/PoolCounterWork.php(162): PoolCounterWorkViaCallback->doWork()\n#29 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/api/ApiParse.php(157): PoolCounterWork->execute()\n#30 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/api/ApiParse.php(423): ApiParse->getContentParserOutput()\n#31 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/api/ApiMain.php(1900): ApiParse->execute()\n#32 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/api/ApiMain.php(875): ApiMain->executeAction()\n#33 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/includes/api/ApiMain.php(846): ApiMain->executeActionWithErrorHandling()\n#34 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/api.php(90): ApiMain->execute()\n#35 /var/www/vhosts/www.alma.inaf.it/mediawiki-1.39.1/api.php(45): wfApiMain()\n#36 {main}"
    }
}