Your transactions are listed based on the data they bear, taniadakka.
QuickBooks Self-Employed is dependent on the information sent to us by your bank, or in this case, PayPal. If the system is unable to retrieve any details on the transactions, they'll show as "Debit card transactions". You may see them with complete details in the PayPal interface, but the sent data is the only thing we can display in the Transactions section.
You can also check about categorizing transactions in QuickBooks Self-Employed for your additional reference.
Feel free to reach back out if you have any other concerns. Take care and enjoy your weekend.
