Mapping issues

gistfile1.txt

Error encountered:
co.elastic.clients.elasticsearch._types.ElasticsearchException: [es/index] failed: [mapper_parsing_exception] 
failed to parse field [details] of type [text] in document with id '1656187419178'. Preview of field's value: '{en=Funky label}'


Consider this JSON
{"lox":"1656187419178","details":{"en":"Funky label"},"label":{"en":"Funky label"}}

And this mappings template:
{
	"mappings": {
		"properties": {
	   	 	"lox": {
				"type": "keyword",
				"store": true
			},
	    	"label": {
	    		"type": "text",
	    		"analyzer": "standard",
	    		"fields": {
			    	"en": {
				        "type": "text",
				        "analyzer": "english"
				    },
				    "fr": {
				        "type": "text",
				        "analyzer": "french"
				    },
				    "de": {
				        "type": "text",
				        "analyzer": "german"
				    }
			    }
	   	 	},
		    "details": {
	    		"type": "text",
	    		"analyzer": "standard",
	    		"fields" : {
			    "en": {
			        "type": "text",
			        "analyzer": "english",
			        "store": true
			    },
			    "fr": {
			        "type": "text",
			        "analyzer": "french",
			        "store": true
			    },
			    "de": {
			        "type": "text",
			        "analyzer": "german",
			        "store": true
			    }
			}
		}
	}
}