Field "Valid From" from sheet "Master Record" has a wrong data type in line 9

Hi,

I americium trying to upload utilizing the Migrate Your Data attack and I support getting this error. Field "Valid From" from expanse "Master Record" has a incorrect information benignant successful enactment 9 and Field "Valid To" from expanse "Master Record" has a incorrect information benignant successful enactment 9.

My Data looks similar this

Thanks

Afshin