Hourly Payroll Template (needs help)

Hola!

I have this payroll template and the formula that calculates the hours, and posts to the 'Hourly Summary' tab, is not correct.
Can anyone take a quick look and inform me of this error?

Gracies!

note:
I was able to do this 'Hourly Pay Data' tab, click J2, click the Formulas menu, click the Insert Function, and click the OK button. Now, this makes it work. I had to do this process on J3, J4, J5, and so on, though all the J cells had the ERROR.
The 'Hourly Summary' tab has a formula in B4, =COUNT('Hourly Pay Data'!A:A)-1 This formula is subtracting 1 from the record count on the 'Hourly Pay Data' tab

"I will take any help on these."