Recurring invoice email link not working

hello, i got the recurring invoice to work, however when the customer gets the email and they click on invoice link it wont open, it refers to localhost link which display "page cant be reach", so how to fix it plz? thanks

I just had/fixed a very similar error - see:
https://akaunting.com/forum/discussion/general/invoice-number-field-wrong-for-recurring-invoices