Yes - it's possible your criminal history could be a problem and result in refusal.And is there a chance my application could be refused from my side ? I'm getting my misdemeanor expunged and it should erase from my record in less than 5 months and is the refugee claim denial would get in the way of the sponsorship ?
Expungement generally does not remove the criminal issue from your record for immigration purposes. If your criminal issue makes you inadmissible to Canada, this will result in a refusal of your application.