Comment 'I think it's only sh...' to 'm', ); ?> just started showing up in the header of my site (very top left) '

Comment to m', ); ?> just started showing up in the header of my site (very top left)

A
· AdjustersClub

· 2019-10-05T18:36:32+0000
I think it's only showing up on admin side.
- · Baloo
  
  · In reply to
  
  A
  
  AdjustersClub
  
  · 2019-10-05T19:15:39+0000
  It seems so, because even connected I do not see it. Can be deleted all the code, check, if you do not see it anymore, put the code part by part, to locate where is the problem.
  Highlighting and examining the item with the browser console can also give hints.