According to my warnings. txt

those are

Missing Masterfile: Weapon Rotate.esm
Missing Masterfile: TR_Data.esm
Missing Masterfile: TR_Map1.esm
Missing Masterfile: Book Rotate.esm
Unable to find masterfile: Weapon Rotate.esm

In which mods are those esms?

Yes, bsa checked

My load order is

GameMode=Morrowind

Morrowind.esm=1
100ProjectileStoreChance.esp=1
Tribunal.esm=1
Bloodmoon.esm=1
silgrad_tower_1-4_6.6.esp=1
Cait_donkeysnhorses.esp=1
Clean CAITS Horses Go Wild..esp=1
Better Bodies.esp=1
farrp_Quivers-FletchingKit_V2-5.esp=1
All Boat Ports.esp=1
Reflective Gold.esp=1
Slof's Better Beasts a.esp=1
Morrowind Patch v1.6.3.esm=1
Weapon Collection.esp=0
Pegas Horse Ranch v3.1.esp=1
Pegas Horse Ranch v3.1.esm=1
Blasphemous Revenants.esp=1
SPS.esp=1
Balmora House II.esp=0
Nightmare.esp=1
McG Simple Portable House.esp=1
ToggleSneak.esp=1
Firstguard_Armour.esp=1
Clean BB_Short_Silk_Wraps.esp=1
Clean balancedchimerrace_V2.esp=1
PB_Dagoth_Bonemold.esp=1
The Lost Tribe.esp=1
The Return of Great House Dagoth version 5.1.esp=1

http://mw.modhistory.com/download--6953 & http://mw.modhistory.com/download--7023.

The Tamriel Rebuilt it wants is most probably this outdated one: http://mw.modhistory.com/download--11043

Looks like Morrowind is missing a few .esm files:

? Tamriel Rebuilt

? Weapon Rotate

? Book Rotate

Have You disabled them before and now use a save that requires them? As far I have checked the Silgrad Tower readme it needs only Tribunal & Bloodmoon.

Yep what BUBISHI says and the TR_Map1.esm are now obsolete and shouldn't be used at all, because TR_Mainland.esm replace both TR_Map1.esm and TR_Map2.esm in http://www.gamesas.com/topic/1483036-relz-tamriel-rebuilt-alpha-release-some-news/ which is the latest stable version.

Thanks, but I hadn't those mods yet, just wanted to help House Dagoth for the first time of my Morrowind game.

DLing!

Thanks again.

Yes, I DID SAY IT WAS OBSOLETE, however...if he do figure out what mod was requiring TR Map 1, he will very likely still need the esms from it to go through the updaters process (in Wry Mash), which was why I listed it. Additionally, that TR page do have an admin comment link to a place he can get the latest version of TR.