Turbotax counted my 2017 federal refund line 437 wrong with 5082.47. cra changed to 1082.47 and i used studio tax to confirm the number is 1082.47.donnt know what's wrong

turbo tax line 437 result is 5082.47

then i got the notice of reassessment from cra changed the number to 1082.47

i used studiotax redo the refund again and their answer is 1082.47

now i got a big penalties from cra and i cannot find where is the problem.