The MSVBVM60.DLL relates to the Visual Basic Virtual Machine and the error message perhaps to a problem with the auto registry backup the program creates prior to running the repairs.
Can you open the repair program, click on Backup Tools and then on Registry Backup and then on Restore.
Click on the Registry Restore tab and use the dropdown to see if it has created a dated back up.
If it has and you have more than one back up, check to see if the sizes match.
Mine is showing as about 149MB for Win 10 2004 but is around 137MB for earlier versions of Win 10.
If yours looks to be about right, click on it and then on Restore Now to see if you still get that error code 1000.
If you get pop up error messages relating to MSVBVM60, running a sfc /scannow from an admin Command Prompt should resolve.
However, if you are using Win 8.1 or Win 10 then enter this cmd first and then run the sfc /scannow
dism /online /cleanup-image /restorehealth
Let me know how you get on.