You have merged cells in the source data 'Errors' row 2. We really, really encourage not using merged cells in source data. They cause havoc for formulas.
Fortunately this time it's not too bad. Try this formula in B6 and fill down and across column C. The Total Pts formula you have in column C still works.
I'm a little confused by the 90 look-back in column E. It seems redundant to what you already have in column D.
That said the text headers in E5:G5 need a helper row above them. The formulas need numbers. An alternative would be to keep existing headers and apply a custom format of 0 "Days". That way they are still numbers, but present the way you like. Select them and look in the formula bar. You will see numbers and not text. Headers formatted 0 "Days" is what I used for this formula. In E6 enter this formula. Fill down and across column G.
For YTD in H6 this and fill down.
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