Support Squares instead of icons

[InfernoCode]

Hello everyone, after installing xenforo, there was a problem in which the standard xenforo icons do not work, and instead of them there are such squares
My XenForo version is 2.1.2

It is written here
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[XenForo]

Hello everyone, after installing xenforo, there was a problem in which the standard xenforo icons do not work, and instead of them there are such squares

Site address?