Proceeds on the sale of my primary residence

Hello,
We sold our primary residence during this tax year and lost $86,000, but the program is not allowing me to insert a negative number. Instead I have indicated that the proceeds on the sale of my primary residence were $1 (the lowest number I can insert).  However, as I try to NETFILE my taxes I am unable to do so as it indicates that there is a problem with the numbers that I have inserted in this section of the return.  I have been over it many times and have put in all the correct data.  I'm not sure why it is coming up as an error.