[Gretl-devel] I can't download Gretl for MacOS

Hello,   I'm a student and I need to download the gretl but when I try to install it the "error" comes out. It says that the current version of gretl is not updated for my version of iOS (I have MacOS Big Sur version 11.2.3). I have no idea what should I do but it says I need to contact the developer of the application and the developer have to update this one. I added attachment with what I see when I want to download the gretl.