java.util.NoSuchElementException: This exception has no message.

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java.util.NoSuchElementException:
at java.util.ArrayList$Itr.next(ArrayList.java:854)
at scala.collection.convert.Wrappers$JIteratorWrapper.next(Wrappers.scala:40)
at scala.collection.Iterator$$anon$10.next(Iterator.scala:448)
at scala.collection.IterableLike.head(IterableLike.scala:106)
at scala.collection.IterableLike.head$(IterableLike.scala:105)
at net.ruippeixotog.scalascraper.model.LazyElementQuery.head(ElementQuery.scala:40)
at net.ruippeixotog.scalascraper.scraper.ContentExtractors$.$anonfun$element$1(HtmlExtractor.scala:84)
at net.ruippeixotog.scalascraper.scraper.SimpleExtractor.extract(HtmlExtractor.scala:62)
at net.ruippeixotog.scalascraper.dsl.ScrapingOps$ElementsScrapingOps.$anonfun$extract$1(ScrapingOps.scala:16)
at scalaz.Monad.$anonfun$map$2(Monad.scala:14)
at scalaz.IdInstances$$anon$1.point(Id.scala:20)
at scalaz.Monad.$anonfun$map$1(Monad.scala:14)
at scalaz.IdInstances$$anon$1.bind(Id.scala:22)
at scalaz.Monad.map(Monad.scala:14)
at scalaz.Monad.map$(Monad.scala:14)
at scalaz.IdInstances$$anon$1.map(Id.scala:19)
at scalaz.syntax.FunctorOps.map(FunctorSyntax.scala:10)
at net.ruippeixotog.scalascraper.dsl.ScrapingOps$ElementsScrapingOps.extract(ScrapingOps.scala:16)

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