Cant convert Quotation to Invoice

Support
1

I can not convert a Quotation to an invoice, When I click the convert button and and

Screen Shot 2017-03-15 at 14.10.07.png1236×367 17.9 KB

I just use the date of today with the date picker.
Nothing happens when clicking on sending.

2

Please follow the guide for errors in the application which can be found in the FAQ.