> model1 <- glmer(categorical_FOD_FODs ~ Condition_FODs + developmentaldisorder_FODs + Condition_FODs:developmentaldisorder_FODs + (1|subject_FODs), + data = indvar_FODs, + family = "binomial", + control = glmerControl(optimizer = "bobyqa")) what should I do if there is 'isSingular'? write me the code

if (summary(model1)$isSingular) {
  model1 <- glmer(categorical_FOD_FODs ~ developmentaldisorder_FODs + Condition_FODs + developmentaldisorder_FODs: Condition_FODs + (1|subject_FODs),
                   data = indvar_FODs,
                   family = "binomial",
                   control = glmerControl(optimizer = "bobyqa"))
}