I followed her during the last 5 or so months that she was active but she just literally vanished one day

Why? It was not at all in her personality to not say anything if she made a decision like quitting. I want to ask people that she mentions in her twitter or who she has collabed with previously but I don't speak the language and feel like just copy pasting google translate isn't the best way to ask about it

any info will help, please back it up as well if you have any, its really easy to just go "oh she died" "she got married and moved on" etc without actually proving it