If your transaction was lost during the bridge, the best thing to do is to open a new tab and redeem the tokens at the portalbridge.com website. On the website, you will need to enter your source chain and the corresponding transaction id (which you can find in your wallet, or with your address in the blockchains explorer). After entering the information, you will be able to process the redemption of your tokens. If you encounter any issues while redeeming your tokens, please contact the portalbridge.com customer service team for help. They will be able to assist you in resolving any issues that may be preventing you from redeeming your tokens.
