I installed map 1 of Tamriel Rebuilt and was playing it for about a week, then downloaded and installed map 2. Now when I try to play from any of my saved games, it tells me the selected master files and plugins have been altered since the file was saved and that there might be errors. I click ok, and it gives these errors:

Unable to find base object 'TR_cr_but_pmicro' for cloning.
Unable to find base object 'TR_cr_but_gmicro' for cloning.
Unable to find base object 'TR_cr_but_gmicro' for cloning.
Unable to find base object 'TR_cr_but_rmicro' for cloning.

Can I get some help figuring this out?

My game files if needed:
GameFile0=Bloodmoon.esm
GameFile1=Morrowind.esm
GameFile2=Tribunal.esm
GameFile3=TR_Data.esm
GameFile4=TR_Map1.esm
GameFile5=TR_Map2.esm

Map 2 (Antediluvian Secrets) comes with a replacement for TR_Map1.esm and TR_Data.esm, have you replaced the old with the new?

Yes I did. Is that the problem?

I think it should be okay if you replaced the old plugins. What happens if you make a new save and then load from that?

I replaced the old plugins and it worked. Thanks! =D