Sourin drop help

#1

So I recently bought a new sourin drop cartridge, filled It up and let it soak into the cotton for 15 min went to use it and worked just fine the next day the cartridge would get extremely hot so I’d take it out and let it cool down again and cleaned the air holes of both the cartridge and the sourin than I started to have more issues along with the extremely hot cartridge with it hitting but than the light will flash blue so I’d clean it out again and still kept happening. ( note only had this sourin for a month) do I need to buy a new cartridge or do I just need to get a new sourin?