The system added a 0 in the box "sale includes a disallowed wash sale loss (code W). The field should be left blank but it won't allow me to remove it?

This is regarding a 1099-B - Capital gains adjustment.  It says the accrued market discount should not be 0.  It needs to be the amount disallowed under wash sales rules or blank if the entire loss is disallowed.    I am just trying to remove the entry??