Cant open apk put in apps

Hey guys, simply downloaded and put in diablo immortal by way of a apk bundle and installer (apkmirror). When i open the sport i get an error from the playstore which says the put in app isnt recognised and will be harmful please set up from the playstore.

I by no means seen this error pop up I simply switched from iOS to a samsung s25 extremely. My earlier androids by no means had this downside.

Hope somebody may help me out. I’ve a screenshot however its in dutch. Hope somebody may help me out since diablo immortal isnt accessible within the playstore due to my nation.