Unable to return order items in return process.

Steps to generate :-

1. Select return menu from order manager.
2. Select new return with from and to party in it.
3. A return will be created and then switch to return items menu.
4. Select order having items to return and check items to return.

Here items can't be selected and return because of error at checkbox and return selected item button. Error can be found in browser developer tool.

Error on return selected item button
<a class="buttontext" href="javascript:document.FreeMarker template error: The following has evaluated to null or missing: ==> selectAllFormName [in template "component://order/webapp/ordermgr/return/returnItemInc.ftl" at line 250, column 40] ---- Tip: If the failing expression is known to be legally refer to something that's 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 ...ocessor.java:1070) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) .submit()">Return Selected Item(s)</a>