XF 2.1 Language installation "Oops! We ran into some problems..."

Ristretto

New member
Hello,

I'm trying to import a language. This is a .xml file which is an export from an other XenForo ("almost same version: 2.1.8 patch 2 to 2.1.9):

But I have this message:

"Oops! We ran into some problems. Please try again later. More error details may be in the browser console."

An idea of what is wrong ?
 
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