Hi,
Please make sure you installed the prerequisite for Microsoft ASP.NET MVC 4.0 on the web server.
https://learn.microsoft.com/en-us/mem/configmgr/protect/plan-design/bitlocker-management#prerequisites
The user account that runs the portal installer script needs SQL Server sysadmin rights on the site database server. During the setup process, the script sets login, user, and SQL Server role rights for the web server machine account. You can remove this user account from the sysadmin role after you complete setup of the self-service portal and the administration and monitoring website.
Event ID 1:
For Integrated Windows Authentication to succeed, necessary SPNs needs to be in place. This message indicates that the SPN required for MBAM application has not been correctly configured.
Event ID 111:
These errors indicate one of the following two conditions:
MBAM websites/webservices were unable to either connect to MBAMCompliance OR MBAMRecovery database
MBAM websites/webservices execution account(app pool account) could not run the GetVersion stored procedure on MBAMCompliance OR MBAMRecovery database
Verify that the app pool account can connect to the compliance or recovery databases. Confirm that it has permissions to run the GetVersion stored procedure.