Without seeing any code snippets or clone links, it’s hard to determine what you are trying to do here.
However, it seems like the problem is happening because Repeating Panel doesn’t support adding components.
You can either go for editing the theme.css file of your Anvil App to make repeating panel achieve that Horizontal RepeatingPanel (Again) - Anvil Q&A - Anvil Community Forum or use a Flow Panel to add items in a loop.
In your case, the Code can be something like this
rows_to_display=app_tables.images.search()
for row in rows_to_display:
L=LinearPanel()
L.add_component(Image(source=row['Image']))
L.add_component(Label(text=row['title']))
L.add_component(Label(text=row['info']))
self.flow_panel_1.add_component(L)