Derby Database at has an incompatible format with the current version of the software
This error occurs when a user tries to connect to a newer Derby database with an older Derby driver. For example, if a connection to a Derby 10.6 database has already been established with the Derby 10.6 JDBC driver, and the user then attempts to connect to a Derby 10.7 database, this error may be thrown.
It is not possible to connect to multiple versions of Derby in the same RazorSQL session. Only one Derby driver can be loaded at a time. If the user has multiple Derby database versions, for example, a 10.6 database and a 10.7 database, RazorSQL would either need to be restarted between connections, or multiple instances of RazorSQL would need to be launched.