Ajax add to cart causes errors

Hey!
Im the dev of this website https://deskelly.ie/.
Website is hosted on WPEngine and support has sent me this https://ibb.co/fnrg4kd
They say that multiple AJAX requests causing website crashes.
Please take a look at point 2. Is this something that can be fixed? Or we need to update hosting plan?
System info: https://joxi.ru/ZrJo3QqSQD3Zkm

• This topic was modified 2 years, 9 months ago by trofimartya1.