What is the predicate-subject mismatch A coffeehouse a place where kids can talk and listen to music without alcohol?

The predicate-subject mismatch in the sentence "A coffeehouse a place where kids can talk and listen to music without alcohol" is that the subject "A coffeehouse" is singular, while the predicate "a place where kids can talk and listen to music without alcohol" is plural.

To correct this mismatch, the sentence should be rewritten as follows:

A coffeehouse is a place where kids can talk and listen to music without alcohol.