I accidentally deleted my payday 2 compatibility pack and have no clue how to redownload it...

Have you tried deleting the compatibility pack from your hard drive and redownloading it? If the error occurs that the compatibility pack needs to be downloaded over and over there may have been an issue with the download the first time, and for some reason
it just keeps repeating the process. It should be listed under the add-ons under the borderlands 2 game content, you shouldn't have to delete any DLC other than the compatibility pack.

delete the system cache then download the compatibility pack then redownload the havoc dlc. I hope this helps

I had this problem, what I did was delete the older compatibility pack, redownloaded the new one then restarted the game. It seems every compatibility pack they've released has had this issue to some degree.

Yes, I deleted the dlc, including the compatibility pack, cleared the cache, restarted the console, redownloaded both, and the problem still persists.

Same here. I accidentally delected the app one day and have yet to find how to redownload. It used to be all the way to the right under My Games and Apps there was a section that showed apps that were deleted and could be reinstalled, but no longer there?
How do we redownload the dashboard app?