Hello. New to all this and getting error

I am new to servers and media archival. Minimal experience with command lines. Never used a program like this before. Running Unraid

I ripped a Blu Ray (About Time 2013) it dropped it into the corrrect share. Names it (About TIme CD1, About Time CD 2, etc) I want to find a program that will tell what each file is and label it correctly. I thought that is what MKVtoolnix did. But I upload the files and it changes everything but when I go to complete the jobs I get the following warning and error and the job wont finish.

— Errors emitted by job ‘Multiplexing to file “About Time (1).mkv” in directory “/storage/Rips/About Time”’ started on 2025-11-13 07:04:38 -08:00 —
The track number 1 from the file ‘/storage/Rips/About Time/About Time_t01.mkv’ cannot be appended to the track number 1 from the file ‘/storage/Rips/About Time/About Time_t00.mkv’. The formats do not match.

and warnings

The track number 0 from the file ‘/storage/Rips/About Time/About Time_t19.mkv’ can probably not be appended correctly to the track number 0 from the file ‘/storage/Rips/About Time/About Time_t18.mkv’: The codec’s private data does not match. Both have the same length (132) but different content. Please make sure that the resulting file plays correctly the whole time. The author of this program will probably not give support for playback issues with the resulting file.

Im not sure what to change or do.