Configuration error: found multiple declarations of @BootstrapWith for test class

My goal is to test a method of a repository interface. I had some errors when I ran this, but I fixed them (hope so). But I don't understand the following one: TheFullErrorStack

I have no clue whats the reason for this error because I never use @BootstrapWith in my test class.

This is my test class:

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
@SpringBootTest
@DataJpaTest
class DepartmentRepositoryTest {

    @Autowired
    private lateinit var entityManager: TestEntityManager

    private lateinit var departmentRepository: DepartmentRepository

    @Test
    fun runFindAllByMembersContainsForNormalValuesShouldBeTrue() {

        val departmentAddress = DepartmentAddress("Musterstraße 1", "0", "Musterstadt", "Musterland")
        val cardLimits: MutableMap<JobType, Int> = mutableMapOf(Pair(JobType.EXPRESS, 1))
        val members: HashSet<Long> = mutableSetOf<Long>(1) as HashSet<Long>

        val department = Department("Test-Department", Cluster.CENTER, departmentAddress, cardLimits, true, PaymentMethods.CARD_PAYMENT_ONLY, "", "", members)
        entityManager.persist(department)
        entityManager.flush()

        val userId = 1.toLong()

        val departments = departmentRepository.findAllByMembersContains(userId)

        Assertions.assertThat(departments).isEqualTo(arrayOf(department))
    }


}

I dont't use @Autowire for the departmentRepository, because I would get the error that there is no bean in this interface.