WHY IS THIS DIALOGUE BOX APPEARING LIKE THIS ON WINDOWS ???

[cutie cat]

The view before some days was very good but now I am not even able to see my own profile picture .

[Lucifer]

Try changing the skin to default.
Its a glitch with other skins.

[cutie cat]

@lucifer_ ok thanks , i got it

[cutie cat]

@lucifer_ means ??? What's skin ?? Where can do this ???