If you have received PayPal payments but your page is not reflecting these payments, the problem is usually the IPN settings in your PayPal account.
The payment goes directly to your account, but we rely on something called IPN (instant payment notifications) to tell Ko-fi that a transaction happened. In some cases these are switched off.
The first thing to do is check your PayPal account to make sure IPN is not disabled (see screenshot for where to find it, under settings).
If it's disabled, then enabling it should fix the issue.
If it is enabled, you should see a link to a IPN history page, and you should be able to resend the Instant Payment Notifications from there.