1.5.6 - Cannot Create Invoice

Hey Guys,

just installed InvoicePlane and wanted to create a Invoice. I searched the Forum but does not find any answers.
It gets stucked with the big Gear. Log look fine to me
InvoicePlane Version: 1.5.6
Browsers: Chrome and Edge both has the same problem
Do you need further Information?

Log: https://pastebin.com/5LEbkJMu

Kind Regards

NatiT

Uhm. i think you can close it. Give it another shoot and do explizit choose the customer and it works. Autofill seems be the problem here.