Minor typos at lines
<message key="xmlui.administrative.item.EditItemStatusForm.not_allowed">(you are not allowed to performe this action)</message>
"performe" should be "perform"
<message key="xmlui.administrative.mapper.MapperMain.para2">This is the item mapper tool that allows collection administrators to map items from other collections into this collection. You can search for items from other collection and map them, or browse the list of currently mapped items.</message>
"collection" should be "collections"