Stack trace for jAlbum 39.6 using skin Story 8.2.0:

se.datadosen.util.ScriptException: /home/juan/.jalbum/skins/Story/lib/util.js:3543 TypeError: children.length is not a function in content.inc at line number 5
at se.datadosen.util.ScriptException.of(ScriptException.java:59)
at se.datadosen.jalbum.ast.ScriptletNode.doEval(ScriptletNode.java:99)
at se.datadosen.jalbum.ast.ASTNode.eval(ASTNode.java:50)
at se.datadosen.jalbum.ast.GroupNode.doEval(GroupNode.java:78)
at se.datadosen.jalbum.ast.IncludeNode.doEval(IncludeNode.java:89)
at se.datadosen.jalbum.ast.ASTNode.eval(ASTNode.java:50)
at se.datadosen.jalbum.ast.GroupNode.doEval(GroupNode.java:78)
at se.datadosen.jalbum.ast.EnterNode.doEval(EnterNode.java:23)
at se.datadosen.jalbum.ast.ASTNode.eval(ASTNode.java:50)
at se.datadosen.jalbum.ast.GroupNode.doEval(GroupNode.java:78)
at se.datadosen.jalbum.ast.ASTNode.eval(ASTNode.java:50)
at se.datadosen.jalbum.AST.eval(AST.java:75)
at se.datadosen.jalbum.AlbumBean.makeIndexPages(AlbumBean.java:4483)
at se.datadosen.jalbum.AlbumBean.makeAlbumForFolder(AlbumBean.java:2001)
at se.datadosen.jalbum.AlbumBean.makeAlbum(AlbumBean.java:3952)
at se.datadosen.jalbum.AlbumBean.smartMakeAlbum(AlbumBean.java:3788)
at se.datadosen.jalbum.JAlbumFrame$7.run(JAlbumFrame.java:1217)
Caused by: javax.script.ScriptException: TypeError: children.length is not a function in /home/juan/.jalbum/skins/Story/lib/util.js at line number 3543
at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:436)
at org.openjdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:420)
at org.openjdk.nashorn.api.scripting.NashornScriptEngine$1.eval(NashornScriptEngine.java:476)
at java.scripting/javax.script.CompiledScript.eval(Unknown Source)
at se.datadosen.jalbum.ast.ScriptletNode.doEval(ScriptletNode.java:67)
... 15 more
Caused by: /home/juan/.jalbum/skins/Story/lib/util.js:3543 TypeError: children.length is not a function
at org.openjdk.nashorn.internal.runtime.ECMAErrors.error(ECMAErrors.java:57)
at org.openjdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:212)
at org.openjdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:184)
at org.openjdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:171)
at org.openjdk.nashorn.internal.runtime.ScriptObject.notAFunction(ScriptObject.java:1915)
at org.openjdk.nashorn.internal.runtime.ScriptObject.findCallMethod(ScriptObject.java:1911)
at org.openjdk.nashorn.internal.runtime.ScriptObject.lookup(ScriptObject.java:1881)
at org.openjdk.nashorn.internal.runtime.linker.PrimitiveLookup.lookupPrimitive(PrimitiveLookup.java:140)
at org.openjdk.nashorn.internal.objects.NativeNumber.lookupPrimitive(NativeNumber.java:319)
at org.openjdk.nashorn.internal.objects.Global.primitiveLookup(Global.java:1293)
at org.openjdk.nashorn.internal.runtime.linker.NashornPrimitiveLinker.getGuardedInvocation(NashornPrimitiveLinker.java:69)
at jdk.dynalink/jdk.dynalink.linker.support.CompositeTypeBasedGuardingDynamicLinker.getGuardedInvocation(Unknown Source)
at jdk.dynalink/jdk.dynalink.linker.support.CompositeGuardingDynamicLinker.getGuardedInvocation(Unknown Source)
at jdk.dynalink/jdk.dynalink.LinkerServicesImpl.lambda$getGuardedInvocation$0(Unknown Source)
at jdk.dynalink/jdk.dynalink.LinkerServicesImpl.getWithLookupInternal(Unknown Source)
at jdk.dynalink/jdk.dynalink.LinkerServicesImpl.getGuardedInvocation(Unknown Source)
at jdk.dynalink/jdk.dynalink.DynamicLinker.relink(Unknown Source)
at org.openjdk.nashorn.internal.scripts.Script$Recompilation$161$87599AAIZA$util.getChildrenOfType(/home/juan/.jalbum/skins/Story/lib/util.js:3543)
at org.openjdk.nashorn.internal.scripts.Script$Recompilation$160$113344AIAZAA$util.getRandomChildren(/home/juan/.jalbum/skins/Story/lib/util.js:4602)
at org.openjdk.nashorn.internal.scripts.Script$Recompilation$221$1466AAA$\^eval\_.getMosaic(<eval>:50)
at org.openjdk.nashorn.internal.scripts.Script$Recompilation$219$10572$\^eval\_.writeOutFolders(<eval>:336)
at org.openjdk.nashorn.internal.scripts.Script$Recompilation$218$18324A$\^eval\_.flushBuffers(<eval>:527)
at org.openjdk.nashorn.internal.scripts.Script$216$\^eval\_.:scopeCall(<eval>)
at org.openjdk.nashorn.internal.scripts.Script$216$\^eval\_.:program(<eval>:715)
at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:646)
at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:506)
at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:519)
at org.openjdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:415)
... 18 more