How to send bep20 tokens to bsc address from bsc mainnet

hi, iaccidently sent trade bep20 tokens from trust wallet to metamask.
ive managed to add the bsc token address and also connected wallet to bsc mainnet but i cant send back to trust wallet bsc address as it keeps saying “not eth network ,set to lowercase”

im completely new to metamask.

so basically its not accepting a bsc address as a valid address to send tokens to