I agree with everyone else - your shutter needs service. Since you're in New York, you have local options for repair. Two that have done good work in the past:
• Nippon Photo Clinic on West 39th Street
• "WizCam" on Ebay... who is actually on Staten Island and, at least before the pandemic, had a space on in the West 20's near 6th Avenue.
I used WizCam in 2019 and was quite happy with everything. I was able to drop it off and pick it up in person. Payment was through Ebay. A friend used Nippon and was happy, although Nippon was quite a bit more expensive.
Frank Marshman (aka. "CameraWiz" - no relation to WizCam) also services these, but he's in Virginia which means shipping. His email address is
camerawiz@msn.com. I've used him for other cameras and the experience has always been nothing less than excellent.
Since you just bought the camera perhaps you can simply return it, but if you do need repair I hope this list is helpful. They're wonderful cameras when they work, and they're not nearly as fragile as the internet would sometimes suggest.