Per DATA-3171, 'Druid_SLA_LVL1' needs to be defined.
I'm new to the project so I'm not sure were Druid_SLA_LVL0 is defined at; I figured could use it as a template for the 1st level spells. I would be willing to start filling in some of the 1st level spells if someone could point me in the right direction.
See comments over there. And welcome to the team.
Pull request updated.