Your iPad Pro 11" 2nd Gen has been dropped, as a result your screen is broken and the glass is cracked as a result of the drop. Dead pixels can appear on your screen and it is also possible that the touch does not work at all or that some keys do not respond, although the glass is not broken. You may also be in a situation where your iPad's touch is bugging: The touch is working by itself and your iPad's touch has become uncontrollable. More worrying: You can't see anything on your iPad Pro 11" 2nd Gen screen anymore, its display is black even though you are sure it is on.
Here are some problems that may be related to a defective charging connector: Your iPad Pro 11" 2nd Gen no longer charges the battery but detects the charger. The battery discharges while the cable is plugged in. Your iPad is turned off and the battery does not charge. Sometimes a simple cleaning will recover the contact between the pins of the charger and the pins of the charging dock of your iPad Pro 11" 2nd Gen. But it is also possible that the part is permanently out of order and must be replaced by a new one. Think anyway to test if your iPad charges with another cable ;- )
You can't clearly identify the problem with your device?
We can make an estimate, charged 40€ and offered if you do the repair.