Emails are not dropped

Mails in Shopsystem are working fines (had issues before).

But now i see that no supplier mails are fired up :(

Here the only entry from the errors:

[15-Nov-2020 13:09:17 Europe/Zurich] Warning: Passed argument cannot be empty in ~/includes/library/lib_reference.inc.php (Line 10)
← ~/vqmod/vqcache/vq2-includes_entities_ent_order.inc.php (Line 754) in __callStatic()
← ~/pages/order_process.inc.php (Line 151) in email_order_copy()
← ~/includes/library/lib_route.inc.php (Line 118) in include()
← ~/index.php (Line 40) in process()
Request: POST /shop/en/order_process HTTP/1.1
Host: 10.3.40.40
Client: 10.3.40.131 (10.3.40.131)
User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:82.0) Gecko/20100101 Firefox/82.0
Referer: http://10.3.40.40/shop/en/checkout

• Supplier Email activated at supplier

• send mail to supplier activated at product

  Any ideas where to start?

Huh. It looks like it has somehting to do with the Order State.

... maybe i find it out myself :)

How do i fire the mail sending proccess?

Sometimes they went out when i changed the order Process, but now they dont go out anymore.

I have reduced down to 3 Orderstates, and the Finalstate has "SELL" checkbox klicked. (if that has something to do with it..)

To fire the supplier email you need to give the order a status that is not "is sale". Then set a status back that IS "is sale".

Huch. Thats not "optimal" ;-)

Well it's not design for sending manual emails. It's designed to be automatic duuh