Solved. No order confirmation emails sent out anymore

Hi.
Running on 1.5.6.4 order confirmation emails don't get sent out anymore, all the other emails, newsletter subscription confirmations and contact, work.
I contacted the hoster already and they said there was nothing wrong there.
The system also doesn't send the order confirmation emails to my additional email addresses specified in the admin/mail.
I read most articles about this and they seem not to have a solution or are quite old.
I tried a couple of alternative order confirmation extensions, but they wouldn't work, either.
The system sent out order confirmations out before, to all email addresses that I specified.
I recently upgraded to 1.5.6.4.
I didn't change any of corresponding files in the folder checkout or in language and replaced them, to make sure, with fresh ones from open cart, as was proposed in the forums.
What should I do now?
Thanks,
Best Regards, Alexandra

If all other mails are working. Something wrong happening while the email template is generated. Because that is where email will fail. You will need to debug the issue.

Do you have a suggestion?

Hallo.
I had help finding the problem and it had to do with openbay. The problem lies in catalog/model/checkout/order.php
A couple of lines need to be changed.

Correct, it is the file where email template is generated.

Do you have an example of what you did to fix this issue?
I am having the same issue here.
Thanks!

Hi.
Just look into the attached vqmod file or upload it to your xml folder.
Best Regards,
Alexandra

Thanks a ton!