GSE and Makro Trouble, doesnt Work. Need Help

Hello, I am new here and have a question. If I use the GSE, and then import a macro from here, that works fine, but if I then drag the macro into my UI from WoW, and then hit the key, for example, key 5 does not happen at all. I’m desperate. I have also watched videos on YouTube, and there was no problem. I hope you can help me.
Ps: Sorry for the bad English