[Koha] Koha 3.20.3 UTF-8 Problems

Hello All, Koha 3.20.3 suffers from UTF-8 Problems in some pages such as, When trying to edit help in Arabic interface it shows garbage like this: ٠رحباً بك٠٠ي ÙƒÙiˆÙ‡Ø§ إذا كانت هذه هي ال٠رة الأولى الأخرى ال٠وجودة Ù ÙŠ الإدارة. Although it shows help good in Arabic when reading help. Also when trying to import borrowers form tools > Import patrons Default values like (Salutation:, Surname, ...etc) looks like (تحية:) in Arabic interface, Although it's ok in Arabic interface columns.def file, Also the same thing when trying to build new Guided reports from Guided reports wizard. Thanks