Hello could you explain what is your exact issue and did your camera ever work correctly.
There are a number of helpful guides here did you try running through them? For example it may take multiple resets of the camera to clear the issue.
If your camera was working fine, what happened for it to require reset - was it losing connection? Could you not connect to it via the app? Can you remember the error message you received?
Any changes to your environment? Any changes to your network? If this just happened could your ISP have made any changes?
Please note when questions like these are asked no assumption is made. It is simply to try to diagnose the issue and try to find a solution.