This is a very common issue. You do not need to spend a dime to fix it, it happens all the time with any extruder if your settings are wrong, you do not need an upgraded hot end kit. Simply either increase the infill, decrease the flow of your last layer, decrease the temperature of the last layer by 5-10 degrees, increase cooling of last layer, decreasing speed of last layer by up to 50%, and disabling ironing. For more information and tech help, check out my blog.


Edit: It looks like the hole print is being printed too hot, try turning your temp down by 10 degrees.