worry vs worries

I saw them go through unemployment and worry about putting food on the table.
I saw them go through unemployment and worries of putting food on the table.

Which is grammatically correct?

Solution 1:

The first is a coordination of plain infinitival verb phrases functioning as complement to saw:

I saw them...

go through unemployment

worry about putting food on the table

The second is a coordination of noun phrases functioning as object to preposition through:

I saw them go through...

unemployment

worries of putting food on the table

Both are grammatical.