why i can't insert any image?

Question

https://code.sololearn.com/WEgH1Fj3rQS5/?ref=app

Answer 1

because your link is not external. you can use different file storage services (for example dropbox)

See my html page:

https://code.sololearn.com/W0YYbYE1b35P/?ref=app

Answer 2

Is the img in a different folder? If it is you have to put the path. Even if it's on the SD card