Generate item button missing

[Dercni]

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Is there an existing issue for this?

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GLPI Version

11.06

Plugin version

2.12.6

Bug description

I have recently upgraded GLPI and the order plugin.

When an order has been received, I am unable to generate an associated item as the button does not appear:

All other options display the button correctly:

When I view an existing order that was created prior to the upgrade, the button does appear:

Relevant log output

Page URL

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Steps To reproduce

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Your GLPI setup information

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Anything else?

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