Kitonum, I took the liberty of inserting the plot into your answer, I hope that's okay with you.
From my end (and I've noticed it many times with your posts), all we could see was some cyrillic writing. Maybe you posted the image on some other server, maybe something went wrong during the upload, not sure, as I can't read the text it shows.
I inserted the plot by 1. saving it from the worksheet with right-click action "export" as jpeg, 2. clicking on the green arrow in the menu above and selecting the picture and then uploading it and then inserting it and then selecting "done".
Below is what I could read in your original post: EDIT: Inserted a "screen capture" so you can see what I see.