Saved A File As PDF From Web Page on my Infinix phone But File Size is 0kb

I tried to save a PDF document on a web page but after clicking on print button on the web page, it will bring out the "Save as PDF option"  and I clicked on PDF to download it, it will bring where to save the document n if need to change the file name, after that I click on Save button. But in the download file, the file size will be '0 byte' which can't be opened and bring out the error message" the document is empty". But if I try several times or any other days, I will just notice that luckily one of the saved file will bring out the file size. My concern is that" how can I save it as PDF file once and for all with getting "0kb". I used chrome as browser. Case ID: ADB-8911557-R3R0