miss part of file name

Hi
first of all thank you so much for your great jon
I tried to give access my file website pdf libraries but your plugin does not show name in correct ways. my file names are in Persian language.
for example my file name is تفسیر موضوعی کتاب but I can see موضوعی کتاب in file list.
the first part of file names does not show.
can you please help me to fix this issue?
thank you

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