Blynk 2.0 + Servo sg90

Hello i am using blynk 2.0 for servo sg90 but i don’t know why my servo don’t move
here my code:

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i mean blynk _write(v7) like this

Hey there,

First please edit your post and add triple backticks at the beginning and the end of your sketch, triple backticks look like this ```

Second how did you configure the datastream ?
Some screenshots please.