I get the same error when i fill Delivered by and Deivered at Textbox leave them empty and check if it will give you the error?

Hello,

I have checked. It's due to `delivered at` date format and the the `delivered by` foreign key constraint. I will fix these in coming update.

Thank you

ok, please notify us, when you done.

can you give us the information/ guide to fix that error on our side. Because it is a very urgent matter as we are using the system currently. We can try to fix it on our side, or can you give us a time period that you will get to fix that issue.

we got the update.
Thank you.