Tap remote mismatch

After reading the discussion to separate the homebrew branch I tried to apply the command:

brew tap tabos/rogerrouter https://gitlab.com/tabos/roger-router-homebrew.git

The following error was shown:

Error: Tap tabos/rogerrouter remote mismatch. https://gitlab.com/tabos/rogerrouter.git != https://gitlab.com/tabos/roger-router-homebrew.git

As I did not really understand the background of the error, I removed the whole rogerrouter package. Then I issued the first command again, but with no luck. Now I have no rogerrouter at all.

Any ideas?