I am using DNN 9 and I have developed a custom DNN module using DNNvb.net compiled module Visual Studio Template. I have buidl the module in release mode and installed it to our live dnn site.It installed successfully and I have tried to add that module to home page(Default.aspx).At that time,it show ModuleLoadException and corrected the error and and reinstalled it again to dnn site.Then it shows 'Critical error have occured'.So I have deleted that module from that page.But still it shows same error message 'Critical error have occured'.I thought it may be because site is not refreshed after I deleted the module.So I have tried to logout from the site, which I have logged as superuser(admin).But after that site is not available and home page is showing 'DNN error and a link to Return to site'.But on clicking that link nothing is happening and I have lost my site with huge content.Eventhough I have tried to restore with previous backup, the same error is showing.Also not able to go to any of other pages.It shows access denied for that pages,because all those pages will show only after login.Not even getting the login page to change anything.Even after removed the module from home page, the db event log is showing module related exception.I have corrected the issue on module , but not possible to install updated module dll.Can you please give me any suggestion.