I changed the method <code>getInstitutionAcronym()</code> as well as <code>getInstitutionName()</code> for that case to see if <code>RootDomainObject.getInstance()</code> returns null
```java
static public String getInstitutionAcronym() {
        final RootDomainObject root = RootDomainObject.getInstance();
        String result = StringUtils.EMPTY;
        if (root != null) {
            final Unit institutionUnit = root.getInstitutionUnit();
            if (root != null) {
                result = institutionUnit.getAcronym();
            }
        }
        if (result.isEmpty()) {
            result = BundleUtil.getStringFromResourceBundle("resources/GlobalResources", "institution.name.abbreviation");
        }

        return result;
    }
```