Error Upon *Second* Use of Heal Selection

[Shabs.lists]

Try again: I tried to post screen shots with the error messages.
The two errors are:
GIMP MESSAGE: Calling error for procedure 'plug-in-resynthesizer':
The texture source is empty. Does any selection include non-transparent pixels?

and

An error occurred running python_fu_heal_selection
RuntimeError: The texture source is empty. Does any selection include non-transparent pixels?

MORE INFORMATION in the 2nd error message:
Traceback (most recent call last):
File "C:\Program Files\GIMP 2\lib\gimp\2.0\python/gimpfu.py", line 741, in response
dialog.res = run_script(params)
File "C:\Program Files\GIMP 2\lib\gimp\2.0\python/gimpfu.py", line 362, in run_script
return apply(function, params)
File "C:\Users\PC\AppData\Roaming\GIMP\2.10\plug-ins\plugin-heal-selection.py", line 148, in heal_selection
pdb.plug_in_resynthesizer(timg, tdrawable, 0,0, useBorder, work_drawable.ID, -1, -1, 0.0, 0.117, 16, 500)
RuntimeError: The texture source is empty. Does any selection include non-transparent pixels?