Flexible error monitoring systems for e-commerce?

Question

Bug tracking systems

Good afternoon. There is a large e-commerce project. The task is to monitor (catching) errors from complex ones, such as the inability to replenish the wallet, a payment error, money for the returned goods (and others, mostly custom), and simpler ones, such as 500, 404 ...
We need the ability to analyze their influence, for example, how many people stop buying after they see 404.
Additionally, you need functionality to send a notification to a specific user or show a pop-up at the time of an error, they say we see that you have such and such an error here is a promo code.
Actually, I want some advice, are there any ready-made solutions or software packages that can do this? Interested in opportunities more with t.z. marketing.