Xenforo 1.5.15 (Please provide a valid XML file)

[Hamzakiraz]

Hello,

I installed xenforo 1.5.15. but I'm getting this error.

The provided file was not a valid XML file. Please provide a valid XML file



can you help please


I'm getting this error when I try to install the language pack and other things

 

[Paul B]

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