3.5 character sheet issues

The issue in question is that the total abilities and ability modifiers are reading as "NaN" they worked perfectly fine until we used temporary modifiers for the first time. the temporary modifier values were in excess of 10.

we later removed the temp values, still reads "NaN"

Try putting replacing the zeros for any misc or temp values which are showing as a zero.  For some reason when a value is deleted, it looks like it puts the default zero back, but does not really do so.  And not having a value in those locations can cause the "NaN" issue.  But typically, just re-entering a zero over any zeros that appear to be there will fix that. Hope that helps.

Thank you!