run out of memory

[Ali_]

Hello!
I am working on jupyter and without noticing I must have have done something that kept running for a while. Now I can't open this file because it says that opera run out of memory. Is there any way to fix that? Before that stupid mistake, I had written a lot of code that I need and now I can't open the file. What can I do?

[snippsat]

Should be fixed if restart the Pc.
Jupyter Notebook run a web application in background and server runs locally at 127.0.0.1:8888
So if stop the server the Jupyter kernel will not run.
.ipynp(noteboks file) will not run if server is not running,
so if restart the kernel(Restart Pc if unsure how) the file will not run or use memory.