How to recover wallet addresses that have the same seed phrase? Please help

I was using btcpayserver for my transactions and getting paid from customers and at the end of the day I withdraw btc to my main wallet using a phrase key, not even knowing what's the wallet address, yesterday their live demo went down and I can't access my account and when I tried to recover my btc wallet using seed phrase, I found my wallet empty, but before the platform went down their were funds in my btcpayserver wallet. How can I retrieve my funds using seed phrase? I tried exodus and electrum and tried to sign up again and when creating a wallet I used the seed phrase but with no chance. Please help!