rezolve this :Can’t find at least one of the external programs dvilualatex.exe or dvipng.exe
Please check the file paths in your TexMaths system configuration
It might be quickest to go to the TexMaths homepage and find answers there, linked from TexMaths » Libreoffice Extensions
When asking on this site, especially installation questions, always add details, This is the guide - How to use the Ask site? - #3 by Hrbrgr