Can my ex wife prohibit who my children meet?

My ex wife and her mother with stepfather do not have a good relationship( they hate each). We been divorced for the last 5 years 2 months ( state of Florida) . We have a 50/50 Custody of our twins.
Now this is my situation. I have a great relationship with her family( mon and stepfather) . They come to my house all the time to see my twins. My ex wife isn't happy at all of this situation and has asked me to now allow them to see our twins. She feels they are super toxic ( they are not). I told her many times, that my relationship with her parents has nothing to do with her relationship with her parents.l, that she has no right to say who come and leaves my house. Does she has the legal right to prohibit them to come to my house? She wants to do a restraining oder which I'm sure will not stick. Any advice would be great.