Countrows help

I have created two columns that both will either return a "1" or a "blank". Both columns are Data type: Whole number, Format: General (I've tried changing this to Whole number as well). My Countrows measure is as follows:

= COUNTROWS(FILTER(Table1, Table1[HEMORRHAGE COUNT] = "1" || Table1[Complication (full)] = "1"))

 

 

Please help me understand this error? Thank you!