weird elasticsearch error

gistfile1.json

		

Mapping for "biz"
{
		biz: {
		properties: {
		tags: {
		index: not_analyzed
		store: yes
		type: string
		}
		id: {
		type: string
		}
		content: {
		index_analyzer: ascAnalyzer1
		store: yes
		search_analyzer: standard
		boost: 2
		term_vector: with_positions_offsets
		type: string
		}
		dtmPosted: {
		format: yyyy-MM-dd HH:mm:ss
		type: date
		}
		username: {
		index: not_analyzed
		type: string
		}
		title: {
		index_analyzer: ascAnalyzer1
		store: yes
		search_analyzer: standard
		boost: 3
		term_vector: with_positions_offsets
		type: string
		}
		dtmUpdated: {
		format: yyyy-MM-dd HH:mm:ss
		type: date
		}
		classId: {
		type: string
		}
		titlesrt: {
		index: not_analyzed
		store: yes
		type: string
		}
		categories: {
		index: not_analyzed
		type: string
		}
		rating: {
		store: yes
		type: integer
		}
		country: {
		index: not_analyzed
		store: yes
		type: string
		}
		}
		}
}


------------------------------------------------
When trying to sort by rating.
------------------------------------------------

		index: bigdataidx
		shard: 3
		status: 500
		reason: QueryPhaseExecutionException[[bigdataidx][3]: query[ConstantScore(*:*)],from[0],size[10000],sort[<custom:"rating": org.elasticsearch.index.field.data.ints.IntFieldDataType$1@667ce8a8>!]: Query Failed [Failed to execute main query]]; nested: NumberFormatException[Invalid shift value in prefixCoded string (is encoded value really an INT?)]; 



------------------------------------------------
When trying to sort by titlesrt.
------------------------------------------------
		index: bigdataidx
		shard: 3
		status: 500
		reason: QueryPhaseExecutionException[[bigdataidx][3]: query[ConstantScore(*:*)],from[0],size[10000],sort[<custom:"titlesrt": org.elasticsearch.index.field.data.strings.StringFieldDataType$1@147f549c>!]: Query Failed [Failed to execute main query]]; nested: IOException[Can't sort on string types with more than one value per doc, or more than one token per field];