Resolved import custom fields values Unknown column 'parent_id' in 'field list'

hello i attach a test xml file with one product and the lof of the import
my probke is when the xml file has a param that is not listed inside the custom field i get this error
Unknown column 'parent_id' in 'field list'
if i add the param inside the field
the import is finished correctly
but this is very wrong and other sites i have i do not have this problem, i cant be know all values of my vendor values to pre-import them on my admin
so please i need a fix for this
thanks