I must have gone to this Sixth House base which is called illunibi because I was supposed to go there but the main quest went right next to the next part when I was supposed to be attracted with Corprus disease during my stay at the Sixth House Base and go cure it at Tel Fyr. I just finished my meeting with Sul-Matuul and becoming a clanfriend among that ashlander place. Anyway, may I have the console command to be right where the Illunibi place is? Or at least all the ones in terms of journal updates from my meeting done with Sul-Matuul to when I was supposed to be attracted to the Corprus disease.

If the game skipped the Illunibi quest i see no reason to go back. The only thing that's really valuable in that cave is the Sixth House Hammer. Very weird though.

Did you get Corprus or not?
If not, you should go to Illunubi and kill the Dagoth.

All I need is the console command to after getting the corprus disease from Dagoth Gares. That and I'll be grateful. If you guys can find it. Because I looked everywhere in the shrine and talked to Caius too.

Are you sure you don't have corpus? The way to check this is there should be some icons in the lower right-hand corner. Hover over each one and if one of them says corpus you have it. Also, what did Caius say when you talked to him, what is the lastest jornal entry you have, and are you sure you checked through the whole shrine? (I'm just trying to pint-point where things went wrong since the console can really mess things up with quests)

After going to Illunibi and not finding Dagoth Gares anywhere(not even in Soul's Rattle) and talking to Caius without a journal update from all his 'get your corprus disease cured,' I put Dagoth Gares in Vivec foreign quarter from the TES construction set and got corprus that way. I think all I have to do now is go to Tel Fyr as Caius ordered and get that disease cured. Although...are you guys sure i'm not supposed to get a journal update when Caius tells me to go get my corpurs disease cured. Because I don't want to travel all the way to Tel Fyr...and like have Divayth Fyr say nothing to me in terms of like...journal updates. Thanks if I can get whatever console commads for whatever journal updates I need if there are any if you guys feel like it.

Ok, I guess there must have been some glitch. If Caius has given you a dwemer thingy, you're fine. If your last update is neither
I have killed Dagoth Gares, as the Spymaster ordered. But with his dying breath, Dagoth Gares pronounced a curse on me, and now I have the corprus disease. He said I would come to Dagoth Ur ' in his flesh, and of his flesh'. I don't feel any different, but the marks of the disease are plain on my face. I'll have to return and report to the Spymaster on the Sixth House base, and hope he knows of some way to cure this disease.
Or
The Spymaster promoted me to Traveler rank, but is very worried about my Corprus disease. My best chance of a cure is Divayth Fyr, an ancient Telvanni wizard who runs a Corprusarium for victims of the disease. With the Dwemer artifact and 1000 gold Caius gave me, I'll go to Tel Fyr and persuade Divayth Fyr to cure my corprus disease. I must hurry back to the Spymaster when I'm cured, because Caius knows how to get the lost prophecies Nibani Maesa asked for.

Then try entering the following into the console:
Journal "A2_2_6thHouse" 50
Then try talking again to Caius and make sure you ask for a promotion. If that doesn't work enter the following:
Player-> AddItem misc_dwrv_artifact50 1
That should give you the artifact you need, so go to Tel Fyr and continue. Make sure you don't have any mods, apart from expansions or official patches for this last part.