# Pastebin vouPK9Yx
Cannot create SubHeader element because React.Element [1] is incompatible with string [2] in property subHeading.

     root/collection/CollectionHeader.js
 [1] 29│     <>
     30│       {collection.public ? (
     31│         l('Public collection by {owner}',
     32│           {
     33│             __react: true,
     34│             owner: <EditorLink editor={collection.editor} />,
     35│           })
     36│       ) : l('Private collection')}
     37│       {collection.editor ? (
     38│         <span className="small">
     39│           {[
     40│             ' (',
     41│             <a href={'/user/' + collection.editor.name + '/collections'} key={collection.editor.name}>
     42│               {$c.user && collection.editor && collection.editor.id === $c.user.id ? (
     43│                 l('See all of your collections')
     44│               ) : (
     45│                 l("See all of {editor}'s public collections", {__react: true, editor: collection.editor.name})
     46│               )}
     47│             </a>,
     48│             ')',
     49│           ]}
     50│         </span>
     51│       ) : null}
     52│     </>
       :
     57│         <h1>
     58│           <EntityLink entity={collection} />
     59│         </h1>
     60│         <SubHeader subHeading={subHeading} />
     61│       </div>
     62│
     63│       <Tabs>

     root/components/SubHeader.js
 [2] 12│ const SubHeader = ({subHeading}: {subHeading: string}) => (