An error occurred while processing the template. 
The following has evaluated to null or missing:
==> formField.getValue().getString(locale)  [in template "blaues-gut-portal.web-resources_SERVLET_CONTEXT_/common_macros.ftl" at line 56, column 49]

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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: #assign Bildnachweis = formField.getV...  [in template "blaues-gut-portal.web-resources_SERVLET_CONTEXT_/common_macros.ftl" in function "getCopyrightText" at line 56, column 25]
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1<#import "/blaues-gut-portal.web-resources_SERVLET_CONTEXT_/common_macros.ftl" as common> 
2 
3 
4<div class="text-and-image"> 
5    <div class="container"> 
6        <#if section??> 
7            <#list section.siblings as entry> 
8                <div class="row"> 
9                    <div class="col-12"> 
10                        <#if entry.headline?? && entry.headline.data?has_content> 
11                            <#assign level = "h1" /> 
12                            <#if entry.level?? && entry.level.data?has_content> 
13                                <#assign level = entry.level /> 
14                            </#if> 
15                            <#switch level.data> 
16                                <#case "h1"> 
17                                    <h1>${entry.headline.data}</h1> 
18                                    <#break> 
19                                <#case "h2"> 
20                                    <h2>${entry.headline.data}</h2> 
21                                    <#break> 
22                                <#case "h3"> 
23                                    <h3>${entry.headline.data}</h3> 
24                                    <#break> 
25                            </#switch> 
26                        </#if> 
27                    </div> 
28                    <div class="col-8"> 
29                        <#if (entry.text?? && entry.text.data?has_content)> 
30                            <p class="teaser-text"> 
31                                ${entry.text.getData()} 
32                            </p> 
33                        </#if> 
34                    </div> 
35                    <div class="col-4 p-0"> 
36                        <div class="image-with-caption image-large"> 
37                            <#assign Copyright = "" /> 
38 
39                            <#if entry.image?? && entry.image.data?has_content && (common.getCopyrightText(entry.image.data)!"") != ""> 
40                                <#assign Copyright = common.getCopyrightTag("",entry.image.data) /> 
41                            </#if> 
42 
43                            <#if entry.image?? && entry.image.getData()?has_content> 
44                                <img src="${common.getScaledImageURL(entry.image.getData(), "bg-image-medium")}" alt="${common.getAltText(entry.image.data)}" class="image" style="width: auto; max-width:100%" loading="lazy"/> 
45                                ${Copyright} 
46                            </#if> 
47                        </div> 
48                    </div> 
49                </div> 
50            </#list> 
51        </#if> 
52    </div> 
53</div>