Okay João, here we go. Based on the sensor information in your panic log, the following assemblies are affected
Part: iPhone 11 Battery: Replacement Part / Repair Kit
Guide: iPhone 11 Battery Replacement - iFixit Repair Guide
Part: Amazon.com: Power Button Flex Cable for iPhone 11- On/Off Keyboard and Flash Light Ribbon with Metal Bracket Holder Replacement Part : Cell Phones & Accessories
Guide: Manuales / Apple iPhone 11 / Power button, flash and top microphone
Part: iPhone 11 Lightning Connector Assembly
Guide: iPhone 11 Lightning Connector Assembly Replacement - iFixit Repair Guide (Note, video guide only)
Charge connector iPhone 11 repair - Free guide - SOSav (Step-by-step guide)
You'll also want to buy precut screen adhesive to resecure the screen after you've finished. I suggest you buy two, as it's all too easy to make a mistake and end up with a tangled ball of adhesive. If that happens you don't want to wait until your reorder comes in before you can put your phone back together, so having a backup is a good idea.
Also note that if you purchase through iFixit, you can get something like the battery with a "Fix Kit" that comes with adhesive and the tools needed to do the job. The extra cost is minimal and well worth it.
Although I heartily support iFixit and their repair efforts, I recognize that their prices can usually be beaten by shopping around at places like AliExpress, Amazon and eBay, so feel free to get your parts wherever it works best for you. Keep in mind, though, that their parts are generally of the best quality, and are usually genuine Apple, so you're guaranteed to get a good, quality part.
Finally, keep in mind that per my previous caution, replacing these parts may not fix your phone if the problem is a motherboard separation issue! However, since it's unlikely that repairing the logic board itself is within your capabilities (at least I assume it isn't), this is going to be your only hope at repairing your phone yourself. If you don't want to take the chance that replacing these parts doesn't fix your phone, then you would probably be better off taking it to a repair shop experienced in board level repairs.
I sincerely hope this helps and would really like to hear how everything turns out. Best of luck, João!