PLS-00201 identifier 'gitora.DS_517' must be declared


I get this error after choosing File > New Repository and submitting a name and a default schema (error text is behind the yellow exclamation mark icon).

Some background:
I couldn’t select New Repository with de default value for baseURL, so I’ve changed it’s port from 7980 into 7997. The full baseURL in T_BDF_SC_SETUP is now 'http://localhost:7997/gitora/ .

I followed the instructions in Gitora3.1_Manual_Installation.