Email Payment Link Errors

Token has expired/Token Error/Invalid Token

Confirmation links are one time use links .
To retry, You may regenerate a new confirmation link by clicking on the "Pay with XXXX buttons" in the initial reminder email after one minute

Invoice paid /Payment already made

If you see this error message, It is a confirmation that the payment has already been triggered for that particular set of invoices.
Please note that the above doesn't mean that the money has already been transferred to the merchant.