Should I contact her again?

I met a girl in my workplace and she works in other department of my company

In the beginning she was very attentive to me and showing interest in me but from last somedays she is not even replying to a single text. I have tried to talk to her in person but she avoids me now I don't know what should I do

Should I contact her again and ask the reason or just forget about her and move on?

Should I contact her again?
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