1. Re-Download Dragon Age: Inquisition(Delux Edition) [Confirmed]
2. Immediately after, go to your PS4's home screen menu and select Notification, from this point, scroll down to Downloads. [Confirmed]
3. In Downloads you'll want to locate the Dragon Age: Inquisition Update File, and pause its progress, as well as any additional DLC(Add-on's, Expansions). Only the Full Game file of Dragon Age: Inquisition should be downloading, keep everything else paused until it finishes. [Confirmed]
Note: Even though the Dragon Age: Inquisition Full Game may appear to be finished downloading after the (5.40GB?) file presents itself as one of your playable games added to your game library in your PS4's home screen, this is not the case. It is highly reccomended that you do not run the game during this time, because the Update File will un-pause on its own and will continue to download. You will want to allow the Dragon Age: Inquisition Full Game file to complete before installing any of the additional files. You can check the actual status by going to the Dragon Age: Inquisition game located on your home screen > Press the Options button on your Dual Shock 4 controller > Scroll down to Information and select that with the X button. On this screen, towards the middle, you should see "Download Status." If the Download Status does not read: "Completed", it is not complete and you should not run the risk of allowing the paused Update File to un pause and continue. You only want to to un-pause the Update File after the game has fully downloaded. [Confirmed]
Also, it's best to verify beforehand that your [Enable Automatic Downloads and Upload] box is not checked in your 'System' menu.
4. Once the Dragon Age: Inquisition Full Game finishes downloading, you will want to run the Update File. [Confirmed]
The game should run properly with no error code at this stage. [Confirmed]
5. Once the Update File is finished, the additional Add-on's and Expansion files can be downloaded one by one. Though I can't say for sure if they will or will not cause the error code to resurface. Some claim that the game will run just fine doing it this way. [Confirmed]
Pro tip: It download/installs much faster when your PS4 is in rest mode.