Motive
A motive is the reason for an action, the psychological force that propels someone to behave in a certain manner or to pursue a certain goal.
Motif
A motif is a theme or idea that recurs as a pattern in an artistic[1] work. Motifs occur in architecture, music, literature, fashion, etc
[1]i.e. paintings
This is most likely a mistranslation, or a miscommunication*,* or straight up a typo, which leaves it kind of misleading.
Sources:
https://grammarist.com/usage/motive-vs-motif/
https://www.gingersoftware.com/english-online/spelling-book/confusing-words/motive-motif
https://www.merriam-webster.com/dictionary/motif
https://www.thefreedictionary.com/motif
