I need help!!!!

I'm trying to update to windows insider preview feature update (26220.7271) (repair version) and everytime i try to update I get the error installation failed in the SAFE_OS phase with an error during BOOT operation! I talked to Microsoft support about it and They tried to help me fix a repair version of windows 11 by having me do a repair install but it failed after restarting and it still says the installation failed in the SAFE_OS phase with an error during BOOT operation! Any help would be greatly appreciated!