There has been an error processing your request

{"error":{"root_cause":[{"type":"query_shard_exception","reason":"failed to create query: Cannot search on field [brand] since it is not indexed.","index_uuid":"NUsMSOtMTTOKW1vDeiyd7A","index":"magento2_product_2_v14516"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"magento2_product_2_v14516","node":"PybsyHTKRFyqgL-57wfZfA","reason":{"type":"query_shard_exception","reason":"failed to create query: Cannot search on field [brand] since it is not indexed.","index_uuid":"NUsMSOtMTTOKW1vDeiyd7A","index":"magento2_product_2_v14516","caused_by":{"type":"illegal_argument_exception","reason":"Cannot search on field [brand] since it is not indexed."}}}]},"status":400}

Error log record number: ac9a3f97c0e9b0da5998db40ba428b9adc83dc9f32b27a17f73c7db1bb1fac25