Hello all. I have a Walther ppks that has been sitting loaded. A family member tried pulling back the slide insert a round into the chamber, but there was already one and now the firearm is jammed. The second issue is, upon pressing the mag release button, nothing happens. I cannot get the magazine to release. I’m not super knowledgeable with firearms so please keep that in mind when offering help. Thank you all in advance! I didn’t think pics would be necessary but if they are just let me know.