400 Bad Request: {"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Fielddata is disabled on [saisons.libelle] in [chamonix_en]. Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [saisons.libelle] in order to load field data by uninverting the inverted index. Note that this can use significant memory."}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"chamonix_en","node":"HttBgR7DSZybPYuUPfgZWA","reason":{"type":"illegal_argument_exception","reason":"Fielddata is disabled on [saisons.libelle] in [chamonix_en]. Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [saisons.libelle] in order to load field data by uninverting the inverted index. Note that this can use significant memory."}}],"caused_by":{"type":"illegal_argument_exception","reason":"Fielddata is disabled on [saisons.libelle] in [chamonix_en]. Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [saisons.libelle] in order to load field data by uninverting the inverted index. Note that this can use significant memory.","caused_by":{"type":"illegal_argument_exception","reason":"Fielddata is disabled on [saisons.libelle] in [chamonix_en]. Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [saisons.libelle] in order to load field data by uninverting the inverted index. Note that this can use significant memory."}}},"status":400}The website encountered an unexpected error. Please try again later.<br />