Highly likely that there’s nothing wrong, your lack of activity is the likely cause of the problem. I suggest you fully hand- wind it ( approx 55 twists of the crown) and see how you go, I don’t like excessively hand- winding automatics on a long term basis, it can lead to wear problems, but giving it a few twists every day for a few weeks shouldn’t do any harm.
I rarely recommend using a watch winder but in cases like this it does make some sense. Lack of activity can be a problem with automatic watches, keeping it running makes more sense in situations like this.