BrandonE
lichess Learn/Puzzle Execution exception Error
After ran docker container, while access Learn --> Puzzle getting below error, please help to fix
[error] l.app.http.ErrorHandler -
! @7gd21c81p - Internal server error, for (GET) [/training] ->
play.api.http.HttpErrorHandlerExceptions$$anon$1: Execution exception[[IllegalArgumentException: bound must be positive]] at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:359) at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:261) at play.core.server.AkkaHttpServer$$anonfun$2.applyOrElse(AkkaHttpServer.scala:429) at play.core.server.AkkaHttpServer$$anonfun$2.applyOrElse(AkkaHttpServer.scala:421) at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:453) at akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:56) at akka.dispatch.BatchingExecutor$BlockableBatch.$anonfun$run$1(BatchingExecutor.scala:93) at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18) at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:94) at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:93) Caused by: java.lang.IllegalArgumentException: bound must be positive at java.base/java.util.Random.nextInt(Random.java:388) at scala.util.Random.nextInt(Random.scala:96) at lila.puzzle.Selector.$anonfun$apply$2(Selector.scala:35) at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:433) at akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:56) at akka.dispatch.BatchingExecutor$BlockableBatch.$anonfun$run$1(BatchingExecutor.scala:93) at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18) at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:94) at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:93) at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:48)
** on web browser **
[IllegalArgumentException: bound must be positive] In /home/lichess/projects/lila/modules/puzzle/src/main/Selector.scala:35
31 // anon
32 case None =>
33 anonIdsCache flatMap { ids =>
34 puzzleColl {
35 _.byId[Puzzle, Int](ids(Random nextInt ids.size))
36 }
37 }
38 // user
39 case Some(user) =>
