Translate one sentence in simple Dutch

This translation is part of our Dutch Gravity Forms translations. And we currently don’t support translation overrides in our plugin. If you however have a good suggestion we are happy to include this in our plugin.

English: This field requires a unique entry and ‘%s’ has already been used
Current: Dit veld vereist een unieke inzending en ‘%s’ is al een keer gebruikt

https://glotpress.pronamic.nl/projects/gravityforms/1.9.1.6/nl/nl_NL?filters%5Bstatus%5D=either&filters%5Boriginal_id%5D=217772&filters%5Btranslation_id%5D=219810

We prefer a translation that is very close to the English text.