Wystąpił błąd podczas przetwarzania szablonu.

The following has evaluated to null or missing:
==> authorContentdata.items  [in template "44616#44647#183853" at line 20, column 22]

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Tip: It's the step after the last dot that caused this error, not those before it.
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Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
	- Failed at: authorContentitems = authorContentdat...  [in template "44616#44647#183853" at line 20, column 1]
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1<#-- 

2Add elements from the sidebar to define your template. Type "${" to use the 

3autocomplete feature. 

4--> 

5<#-- *Permission issue with guest user* 

6<#assign currentEntry = (request.getAttribute("LIFERAY_SHARED_LAYOUT_ASSET_ENTRY"))! /> 

7<#assign classPK = currentEntry.classPK /> 

8--> 

9 

10<#assign  

11currentURL = themeDisplay.getURLCurrent() 

12fullURLPath = currentURL?split("/") 

13urlData = fullURLPath[2] 

14removedParams = urlData?split("?") 

15friendlyURLPath = removedParams[0] 

16/> 

17 

18<#assign 

19authorContentdata = restClient.get("/headless-delivery/v1.0/structured-content-folders/148280/structured-contents?filter=friendlyUrlPath%20eq%20%27" + friendlyURLPath + "%27") 

20authorContentitems = authorContentdata.items 

21/> 

22<#if authorContentitems?has_content> 

23<#assign 

24authorContent = authorContentitems[0] 

25contentFields = authorContent.contentFields 

26categories=authorContent.taxonomyCategoryBriefs 

27authorContentData = jsonFactoryUtil.createJSONObject(authorContent) 

28friendlyURL = authorContentData.friendlyUrlPath 

29authorCategoryId = "0" 

30/> 

31 

32<#list categories as category > 

33				     <#assign authorCategoryId = category.taxonomyCategoryId /> 

34      </#list> 

35 

36 

37<span class="d-none" id="author-id">${authorCategoryId}</span> 

38</#if> 

39<script> 

40AUI().ready(function(){ 

41  const authorID = document.getElementById("author-id").innerHTML; 

42  if(authorID) { 

43	setTimeout(function(){ 

44    document.querySelector('[name="categoryId"][value="'+authorID+'"]').closest('label').click() 

45  }, 1000); 

46	} 

47}); 

48</script>