I get some unrecognized charsets

where someone visit my website,i get some action titles like ??3¨¦??¨¨¡¥???-???¨¨???¡è???¡ã - click,-25E7-259C-2581-25E6-25B2-25B9-25E5-25AE-259D–25E5-2585-25A8-25E8-2587-25AA-25E5-258A-25A8-25E6-2599-25BA-25E8-2583-25BDSEM-25E7-25B3-25BB-25E7-25BB-259F and userid like ???13???8

my website’s language is chinese

how can i do with it?

any help would be greatly appreciated
thank you