How many items do you have? And did you make any specification about number of factors?

3 items and I didn't do any specification about number of factors (or at least not on purpose, I don't know how to do that)

Three items should be minimum needed for EFA. Try checking your correlation matrix to see if there is anything unusual. Also, instead of the default extraction technique (Principal Components Analysis), try selecting Principal Factors.

But note that the only possible meaningful solutions are either to put all three items on one factor, or to put two items on one factor and the third item on a second factor.

If you are expecting all three items to load on a single factor, then check Cronbach's alpha to see if how reliable that factor would be (you will find it under Scale, then Reliability Analysis).

I recommend this article for you.

https://www.tqmp.org/RegularArticles/vol09-2/p079/p079.pdf