ClassNotFoundException: org.apache.zeppelin.spark.ZeppelinContext when using Zeppelin's input value inside spark DataFrame filter method running on Spark Standalone Cluster

ClassNotFoundException: org.apache.zeppelin.spark.ZeppelinContext when using Zeppelin's input value inside spark DataFrame filter method running on Spark Standalone Cluster

val city = z.select("City",cities).toString
oDF.select("city").filter(r => city.equals(r.getAs[String]("city"))).count()
I even tried copying the input value to another val with

new String(bytes[])
but still get the same error.

The same code work seamlessly if instead of getting the value from z.select I declare as a String literal

city: String = "NY"
org.apache.spark.SparkException: Job aborted due to stage failure: Task 0
in stage 49.0 failed 4 times, most recent failure: Lost task 0.3 in stage
49.0 (TID 277, 10.6.60.217): java.lang.NoClassDefFoundError:
Lorg/apache/zeppelin/spark/ZeppelinContext;

org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 88.0 failed 4 times, most recent failure: Lost task 0.3 in stage 88.0 (TID 5675, 10.6.60.219): ExecutorLostFailure (executor 27 exited caused by one of the running tasks) Reason: Remote RPC client disassociated. Likely due to containers exceeding thresholds, or network issues. Check driver logs for WARN messages.
Driver stacktrace:
at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1450)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1438)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1437)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1437)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:811)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:811)
at scala.Option.foreach(Option.scala:257)
at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:811)
at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:1659)
at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1618)
at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1607)
at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48)
at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:632)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1871)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1884)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1897)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1911)
at org.apache.spark.rdd.RDD$$anonfun$collect$1.apply(RDD.scala:893)
at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
at org.apache.spark.rdd.RDD.withScope(RDD.scala:358)
at org.apache.spark.rdd.RDD.collect(RDD.scala:892)
at org.apache.spark.sql.execution.SparkPlan.executeCollect(SparkPlan.scala:290)
at org.apache.spark.sql.Dataset$$anonfun$org$apache$spark$sql$Dataset$$execute$1$1.apply(Dataset.scala:2183)
at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:57)
at org.apache.spark.sql.Dataset.withNewExecutionId(Dataset.scala:2532)
at org.apache.spark.sql.Dataset.org$apache$spark$sql$Dataset$$execute$1(Dataset.scala:2182)
at org.apache.spark.sql.Dataset.org$apache$spark$sql$Dataset$$collect(Dataset.scala:2189)
at org.apache.spark.sql.Dataset$$anonfun$count$1.apply(Dataset.scala:2217)
at org.apache.spark.sql.Dataset$$anonfun$count$1.apply(Dataset.scala:2216)
at org.apache.spark.sql.Dataset.withCallback(Dataset.scala:2545)
at org.apache.spark.sql.Dataset.count(Dataset.scala:2216)
... 47 elided