Empty screen when trying to generate a Purchase Order

[aup]

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Is there an existing issue for this?

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GLPI Version

10.0.18

Plugin version

2.11.0

Bug description

When I try to generate a purchase order for any order, I get an empty screen in a new tab and no file is generated. I don't see any PHP error in the logs. This bug seems to have been introduced in this new version of the order module (2.11.0).

Relevant log output

Page URL

https://DOMAIN/marketplace/order/front/export.php?template=PO.odt&sign=someone.png&id=2270&_glpi_csrf_token=a5475e9948c49fde19c91124837fcd0874d4b0eb3a099ae8f94603a03bdf5115

Steps To reproduce

1. Open any Order
2. Go to the "Puchase Order" Tab
3. Click on the "Order Generation" button

Your GLPI setup information

No response

Anything else?

No response