Customer is attempting to pay using the invoice link, it gives them an error. The problem is with an attempt to pay. Thank you in advance.

It can be challenging when your customers are unable to pay the invoices, anton. My main goal is to ensure this gets resolved.

Before providing troubleshooting steps, may I know the error message encountered by your customers? Adding additional details will help us investigate its cause and provide accurate steps to fix it. A screenshot would be a great help, too.

Please know that we're always here to help you out. I'll keep an eye on your response.