problem with account and prediction words and personalyzed option

Hello 
i've such a problem with my account 
my account is linked with the email "abderrahmanebenhalima@gmail.com" 
suddenly, i've lost all my data and my dictionaries and words 
i've sent you and email before but you didn't but you did not answer me. 
i've recieved an email from google 

and the personalized words button has disappeared from the Account menu in the app so i can't use my personalized words anymore 

please fix this because i was using this keyboard for years 
i can't give it up now so easily . 
please help me to recover every data and word in my account .