Error transferring bitcoins to another wallet
This is unrelated to Bitcoin itself. Bitpanda has a minimum withdrawal amount, and it seems that you do not have at least that amount to withdraw. The amount seems to be the equivalent of 100 USD (specifically, it is 0.002167 BTC at time of writing).
If you do in fact have more funds in your account than that amount, I would advise contacting Bitpanda for support.