2020-12-18 10:42:43 [DEBUG] Error description : Internal Server Error
<H1>Error Page Exception</H1>
<H4>SRVE0260E: The server cannot use the error page specified for your application to handle the Original Exception printed below.</H4>
<BR><H3>Original Exception: </H3>
<B>Error Message: </B>nested exception is: psdi.util.MXAccessException: BMXAA0019I – The To Site field is either read only or part of the primary key. You cannot edit this field.<BR>
<B>Error Code: </B>500<BR>
<B>Target Servlet: </B>MOSServiceServlet<BR>
<B>Error Stack: </B><BR>
com.ibm.ws.webcontainer.webapp.WebAppErrorReport: nested exception is: psdi.util.MXAccessException: BMXAA0019I – The To Site field is either read only or part of the primary key. You cannot edit this field.
You cannot move an asset out of a storeroom with a simple move. You need to issue the item from storeroom. If you login to Maximo and try to move any asset located in a storeroom using the Move/Modify action you will see that ‘To Location’ field is readonly.
MxLoader is just telling you it is not possible to do what you are trying to do.
Unfortunately, MxLoader does not provide a template for issuing assets from storeroom. You can try with MXINVISSUE object structure.