please help why error thrown out in org.apache.spark.sql.catalyst.expressions.BindReferences in spark3

hi all i have a query ``` 1 spark.sql("select distinct cust_id, cast (b.device_name as varchar(200)) as devc_name_cast, prmry_reside_cntry_code from (select * from ${model_db}.crs_recent_30d_SF_dim_cust_info where dt='${today}') a join fact_rsk_magnes_txn b on

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