Ysl Y edp

Hi, I have a problem. My parfume was working normaln until one time a wanted to spray it, and it didnt work. I noticed that when i spray there are bubbles going inside the parfume, like it is spraying not outside but inside. It is YSL y edp, I tried to unscrew it and it, again, spray on the other said as it is supposed to. Do you have any advice, or do i have to buy new bottle?