Hello @joshuavidana,
Thanks for the website link, I have checked your issue the products are easily added to the cart and also, and I can log in as well. I have recorded a video for you to watch and understand that your site is working perfectly fine here is the video link: https://www.veed.io/view/e249ac10-0e03-4f22-9717-1504f9b78874?panel=share please check back to your issue by clearing the browser cache.
Best Regards,
PThemes Team.