play.api.Application$$anon$1: Execution exception[[AuthenticatorRetrievalException: [Silhouette][session-authenticator] Could not retrieve authenticator]]

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play.api.Application$$anon$1: Execution exception[[AuthenticatorRetrievalException: [Silhouette][session-authenticator] Could not retrieve authenticator]]
at org.apache.commons.codec.binary.Hex.toDigit(Hex.java:178)
at play.api.libs.Codecs$.hexStringToByte(Codecs.scala:76)
at play.api.libs.Crypto$.decryptAES(Crypto.scala:276)
at play.api.libs.Crypto$.decryptAES(Crypto.scala:252)
at com.mohiva.play.silhouette.impl.authenticators.SessionAuthenticatorService.com$mohiva$play$silhouette$impl$authenticators$SessionAuthenticatorService$$unserialize(SessionAuthenticator.scala:281)
at com.mohiva.play.silhouette.impl.authenticators.SessionAuthenticatorService$$anonfun$retrieve$3$$anonfun$3.apply(SessionAuthenticator.scala:140)
at com.mohiva.play.silhouette.impl.authenticators.SessionAuthenticatorService$$anonfun$retrieve$3$$anonfun$3.apply(SessionAuthenticator.scala:140)
at scala.Option.flatMap(Option.scala:171)
at com.mohiva.play.silhouette.impl.authenticators.SessionAuthenticatorService$$anonfun$retrieve$3.apply(SessionAuthenticator.scala:140)
at com.mohiva.play.silhouette.impl.authenticators.SessionAuthenticatorService$$anonfun$retrieve$3.apply(SessionAuthenticator.scala:139)
at scala.util.Success$$anonfun$map$1.apply(Try.scala:237)
at scala.util.Try$.apply(Try.scala:192)
at scala.util.Success.map(Try.scala:237)
at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.processBatch$1(BatchingExecutor.scala:67)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:82)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:59)
at akka.dispatch.BatchingExecutor$Batch.run(BatchingExecutor.scala:58)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

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