We are getting error while inserting "Team Velocity chart" Macro

[Katam Kumar _WIPRO_]

While inserting "Team Velocity chart" Micro we are getting error

Please find the attachment for the Error screenshot and below are the logs from server

From the log, we found the below error
com.atlassian.confluence.content.render.xhtml.XhtmlException: RuntimeException occurred while performing an XHTML storage transformation (null)
at com.atlassian.confluence.content.render.xhtml.storage.StorageXhtmlTransformer.transform(StorageXhtmlTransformer.java:53)
at com.atlassian.confluence.util.ExcerptHelper.getMacroDefinition(ExcerptHelper.java:86)
at com.atlassian.confluence.util.ExcerptHelper.getExcerpt(ExcerptHelper.java:40)
at com.adaptavist.confluence.naturalchildren.NaturalChildrenAction.getPageExcerptHtml(NaturalChildrenAction.java:101)
at sun.reflect.GeneratedMethodAccessor5092.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:385)
at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:374)
at com.atlassian.velocity.htmlsafe.introspection.AnnotationBoxingMethod.invoke(AnnotationBoxingMethod.java:24)
at com.atlassian.velocity.htmlsafe.introspection.UnboxingMethod.invoke(UnboxingMethod.java:28)
at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:270)
at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:262)
at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:507)
at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)