The 'Send' button for a coin may appear disabled (dimmed) in the Coinosh interface due to a couple of reasons:
Wallet Synchronisation: If the wallet app is currently synchronising with the blockchain to update the transaction history and balance, the 'Send' button may be temporarily disabled until the synchronisation process is complete. This ensures that you have the most up-to-date information before initiating a transaction.
No internet connection: If your device does not have an active internet connection, the 'Send' button will be disabled as it requires connectivity to communicate with the blockchain network and initiate the transaction.
In both cases, once the synchronization is complete or an internet connection is established, the 'Send' button should become enabled and allow you to proceed with sending the coin.