Changed the logo but yet it still the old logo when i use it in a link eg facebook

My app’s URL: https://wel-d.glideapp.io/

Hi there

I have made an app where i put a temp logo for whilst i was getting one designed but now, even though ive changed it in the designer, its not changing when i share it which means i cant use the app??? any idea how i can change this as im in a big rush

Cheers Paul

I can’t access your app.
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