Issue Installing Knot Theory

Question

I have been trying to install the Knot Theory package from the knot atlas, but have been unsuccessful. Firstly I tried the command
<< KnotTheory`

but received a failure message. I then proceeded to modify the directory using the the AppendTo[$Path, "DIRECTORY"] command, and still receive the same failure message.
What is going wrong?

Encho Solakov · Accepted Answer

i downloaded and unzipped the package in
C:Parent

Appended the path as it is explained:
AppendTo[$Path, "C:Parent"]

There were some errors during the import
<<KnotTheory`
ParentDirectory::nums: Argument File should be a positive machine-size integer, a nonempty string, or a File specification.
ParentDirectory::nums: Argument File should be a positive machine-size integer, a nonempty string, or a File specification.
ToFileName::strse: String or list of strings expected at position 1 in ToFileName[{File,WikiLink,mathematica}].
ToFileName::strse: String or list of strings expected at position 1 in ToFileName[{File,QuantumGroups}].
Loading KnotTheory` version of September 6, 2014, 13:37:37.2841.
Read more at http://katlas.org/wiki/KnotTheory.

but some of the functions work:
In[8]:= KnotTheoryVersion[]
Out[8]= {2014,9,6,13,37,37.2841}

Mathematica version: 12

Issue Installing Knot Theory

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