Confint returning a logical value

I created the following SLR model using:

fit <- lm(WAge ~ HAge, data = couples) # regress wife's age against husband's age

...and it worked just fine.

However, I want to calculate the confidence intervals using confint(), but instead of the customary:

                         2.5%          97.5%
HAge keeps on returning a logical value, in this case [TRUE]. Would anyone happen to know why this is happening? Thank you!!!

Can you post a reprex showing the exact code you are using with your confint() call. When I just used the function on a lm object, it returned the expected result.