how can i solve this issue?
Please do not post images of error messages here. It’s a lot more helpful if you copy/paste the text into the body of your message, surrounded between lines of three backtick - ` characters. This means you’ll have a line of ```, then the text, then another line of ```.
Note: It’s also generally more helpful if you post the error message and traceback from the console window in which you’re running runserver than the error message from the browser.
What do you think this error message is telling you?