Sometimes transactions might take longer to be confirmed by the network. When creating a transaction in AirGap Wallet a fee is calculated depending on your preference between slow & cheap and fast & expensive.
If you go to your account e.g. Tezos, you will see an entry below “Pending Transaction”. You can take a look at the block explorer to understand more about the status, by selecting the transaction and then “Open Blockexplorer”.
If you have waited for a few hours and the transaction still hasn’t been confirmed. You can recreate the transaction again in AirGap Wallet, this time you can either use fast & expensive or set your own fee. Go through the signing process with AirGap Vault and broadcast the transaction with AirGap Wallet.