This POP3 server does not seem to support encrypted passwords. If you just set up the account, please try changing to 'Password, transmitted insecurely' as the 'Authentication method' in the 'Account Settings | Server settings'. If it used to work and now suddenly fails, this is a common scenario how someone could steal your password.
POP3 serveri shifrlangan parollarni qo‘llab-quvvatlamaydiganga o‘xshaydi. Agar hozirgina bu hisobni sozlagan bo‘lsangiz, uni "Hisob sozlamalari" | "Server sozlamalari" ichidan "Haqiqiylikni tasdiqlash usulbubi"dan "Parol, xavfli o‘tkazish"ga o‘zgartiring. Agar u ish uchun foydalanilgan bo‘lsa va hozir kutilmaganda ishlamay qolgan bo‘lsa, kimdir parolingizni o‘g‘irlashga  urinayotgan bo‘lishi mumkin.