Hello peoples ☺ I am still awake in the night hehehe ☺ Tonight I have download this Slots Era V1.76.1 from this website to my mobile phone and installed the game without any problems, which I had before trying to install these previous version of the game, that I have download from this website. So now I am glad it worked and that I could install the game, that I couldn't do with these other version, when I got this error message, that is was a problem installing the game. Thank you that you fixed that problem xyzhunter. Yes, I still use Android 11 ☺