What software did you use? Each tax year has its own software, so you must be careful to use the software for the tax year you are trying to file a return for. You cannot change the year of the software by upgrading or any other way. If you are trying to file a 2018 return you must use 2018 software. If you are trying to prepare an d file a 2019 return you must use 2019 software.
You are posting from online Deluxe--which can ONLY be used for a 2019 return. It cannot be used for a 2018 return.