There are literally hundreds of motif-finding programs. Are you looking for Dragon Motif Builder to reproduce previous results? If not, I don't see a compelling reason to use something that was published 20 years ago, and seemingly not maintained either in a code repository or as a web tool.

I will give you two online tools that should easily do what you want.

• https://meme-suite.org/meme/
• https://bammmotif.mpibpc.mpg.de/