You would have a better idea of what her specific areas of weakness are if you could find out what her scores were on the different subtests.
You should be able to request that information from the school, and a copy of the report that interprets the results.
There may not be a cause for concern. She may be very talented in certain areas, leading to a discrepancy. Or the score gap could be an indication of asynchronous development. Sometimes kids develop skills unevenly, especially if they have strong interests in one area. Still, if you have noticed a marked weakness in another area (you mentioned puzzles) it may be worth looking into.