[http-8] ERROR freemarker.runtime - get(parentProperty) failed on instance of org.openbravo.client.application.window.OBViewTab 
freemarker.template.TemplateModelException: get(parentProperty) failed on instance of org.openbravo.client.application.window.OBViewTab 
at freemarker.ext.beans.BeanModel.get(BeanModel.java:223) ~[freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Dot._getAsTemplateModel(Dot.java:76) ~[freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) ~[freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.ComparisonExpression.isTrue(ComparisonExpression.java:111) ~[freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:77) ~[freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Environment.visit(Environment.java:210) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.MixedContent.accept(MixedContent.java:92) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Environment.visit(Environment.java:210) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Macro$Context.runMacro(Macro.java:172) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Environment.visit(Environment.java:603) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Environment.visit(Environment.java:210) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.MixedContent.accept(MixedContent.java:92) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Environment.visit(Environment.java:210) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Environment.visit(Environment.java:417) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.Environment.visit(Environment.java:210) [freemarker-2.3.16.jar:2.3.16] 
at freemarker.core.MixedContent.accept(MixedContent.java:92) [freemarker-2.3.16.jar:2.3.16]