why the page can not fully display?

hello dears,           why the page can not display fully, just display the return button ,the important information display “ no items found” , i don’t know why? in studio dispaly result:  
1 answers

The answer is already in your text: "no items found".
Your view has a list view, which is filled with the Entity "Calibration_file" from the database. 
In your case however, the database is empty and therefore no information can be displayed.