Issues with apt-get and dpkg related to Secure Boot

I've recently been having trouble with Ubuntu. Whenever I try to sudo apt get something (in this case python 3), I get the error message: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem

So I enter the command and after a long process I get this message:

Configuring Secure Boot ├────────────────────────┐
 │                                                                           │ 
 │ Your system has UEFI Secure Boot enabled.                                   
 │                                                                             
 │ UEFI Secure Boot requires additional configuration to work with             
 │ third-party drivers.                                                        
 │                                                                             
 │ The system will assist you in configuring UEFI Secure Boot. To permit       
 │ the use of third-party drivers, a new Machine-Owner Key (MOK) has been      
 │ generated. This key now needs to be enrolled in your system's firmware.     
 │                                                                             
 │ To ensure that this change is being made by you as an authorized user,      
 │ and not by an attacker, you must choose a password now and then confirm     
 │ the change after reboot using the same password, in both the "Enroll        
 │ MOK" and "Change Secure Boot state" menus that will be presented to you     
 │ when this system reboots.                  
If you proceed but do not confirm the password upon reboot, Ubuntu will     
 │ still be able to boot on your system but any hardware that requires         
 │ third-party drivers to work correctly may not be usable.                    
 │                                                                             
 │                                  <Ok>                       

I am honestly stumped concerning overcoming this. I need help as to what I can do.

Select OK. Then, you will be prompted to set a password. Set a simple password, then the command will complete. Simply type sudo reboot, which will reboot your laptop. In the process of rebooting, you will see a blue screen with an option that reads Enroll MOK. Click enter on it and type the password that you set. Do the same for the option Change Secure Boot state. Then, continue. Your computer will reboot as normal. This is a normal procedure to prevent malware and not a bug.