Button does not call onsubmit in formik - React Native

Question

all good? I have a Validator with Yup, and a formik, but somehow onsubmit is not called, when I click the button, I already checked in the Debugger if something is called and nothing :(

This is my Validator:

const validator = yup.object().shape({
  currentPassword: yup
    .string()
    .min(8, 'Sua senha deve conter pelo menos 8 caracteres')
    .required('Preencha uma senha válida'),
  newPassword: yup
    .string()
    .min(8, 'Sua senha deve conter pelo menos 8 caracteres')
    .required('Preencha uma senha válida'),
  confirmPassword: yup
    .string()
    .min(8, 'Sua senha deve conter pelo menos 8 caracteres')
    .oneOf([yup.ref('newPassword'), null], 'As senhas digitadas não são iguais')
    .required('Confirme sua senha')
});

this is the formik

         <Formik
            initialValues={{
              currentPassword: this.state.currentPassword,
              newPassword: this.state.newPassword,
              confirmPassword: this.state.confirmPassword,
            }}
            validationSchema={validator}
            onSubmit={this.onSubmit}>
            {({
              handleChange,
              handleBlur,
              errors,
              touched,
              handleSubmit,
              values,
            }) => (
              <>

                <TextInput
                  formikKey="currentPassword"
                  label={'Digite sua senha atual'}
                  containerStyles={Sheet.textIpunt}
                  onChangeText={handleChange('currentPassword')}
                  onBlur={handleBlur('currentPassword')}
                  errorMessage={touched.currentPassword && errors.currentPassword}
                  isSecure={true}
                  show={this.state.passwordVisibility}
                  onChangeVisibility={this.passwordVisibility}

                  autoCapitalize={'none'}
                  value={values.currentPassword}

                />

                <TextInput
                  formikKey="newPassword"
                  label={'Digite sua nova senha'}
                  containerStyles={Sheet.textIpunt}
                  onChangeText={handleChange('newPassword')}
                  onBlur={handleBlur('newPassword')}
                  errorMessage={touched.newPassword && errors.newPassword}
                  show={this.state.passwordVisibility}
                  onChangeVisibility={this.passwordVisibility}
                  isSecure={true}
                  autoCapitalize={'none'}
                  value={values.newPassword}

                />

                <TextInput
                  formikKey="confirmPassword"
                  label={'Confirme a nova senha'}
                  containerStyles={Sheet.textIpunt}
                  onChangeText={handleChange('confirmPassword')}
                  onBlur={handleBlur('confirmPassword')}
                  errorMessage={touched.confirmPassword && errors.confirmPassword}
                  show={this.state.passwordVisibility}
                  onChangeVisibility={this.passwordVisibility}
                  isSecure={true}
                  autoCapitalize={'none'}
                  value={values.confirmPassword}
                />

                <AppButton label={'Trocar Senha'} onPress={handleSubmit} />


                {/*    <ButtonLoading title="Alterar Senha" styleText={Styles.ButtonChangePasswordTitle} style={Styles.ButtonChangePassword} loading={loading}
                  onPress={handleSubmit}>
                </ButtonLoading> */}




              </>
            )}
          </Formik>