Thank you for your printscreens.
If I do exactly the same as you with the same metadata I get the "perfect" lyrics without any HTML code:
The main difference could be that I use this &Lyrics#Musixmatch02.rar web source script, from the first post in [WS] Import lyrics from websites . The last change to this musixmatch websource script was made 2021-02-07.
Please try it with the same websource script. @ohrenkino already told you, how you find the necessary informations about the installation. If you do the same again as you did here, you should get it working.