Please Help me, on Moving to Clover 5160 has caused my Clover to not shutdown

Hi All, I am relatively new to all this and have been trying to upgrade my Catalina which has been running perfectly for 4 years . But now I keep getting messages that my OS is out of date and some applications I can not upgrade. To start with I was trying to install Sequoia using open core, but I was advised here that I could use Clover 5160. So I have updated to clover 5160 but now the system will not restart, shutdown or sleep. Applications close down and I am left with an empty desktop and frozen mouse, with the computer still running. This is also effecting efforts to try and install Sequioa, the installation will proceed to the stage at 12 mins, when I think it wants to reboot but it just freezes the same way. I have DUCK DUCKED and Duck Ducked trying to find a solution to no avail. I hope someone here can point me in the right direction. All the best Hardware Overview: Model Name: iMac Model Identifier: iMac18,3 Processor Name: 8-Core Intel Core i9k Processor Speed: 3.60 GHz Number of Processors: 1 Total Number of Cores: 8 L2 Cache (per Core): 256 KB L3 Cache: 16 MB Hyper-Threading Technology: Enabled Memory: 32 GB Boot ROM Version: 1037.40.118.0.0 Apple ROM Info: Apple ROM Version. Board-ID : Mac-AA95B1DDAB278B95 ⌘ Powered by Clover revision: 5160 (master, commit 7b08a616e) SMC Version (system): 2.41f2 Motherboard ROG Asus RX-590-F GPU: Asus RX590 8gb Processor Intel I9 Coffee lake chipset Memory 2x16gb Booting from WD black m.2 config.plist

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