cannot message in mother language

[waw_contact]

ZF Model: ZB602KL
RAM: 3G
Firmware/APP Version: Android 8.0
Frequency of Occurrence: every time when sending sms
Rooted: No
APP Name: messages

hi every time I send sms I get notification that I cannot use letters in my mother language!! when I was configuring phone for the first time I configured it in my language which is polish and all menu is in polish so why I cannot use polish letters?? how can I sove this?

[ServiceH_ASUS]

Hi waw.contact Good day Please kindly provide me your phone’s firmware version. Could you provide the screenshots of error notification. Please try to long press the letter of Gboard then it will show polish alphabet. Thank you:)