Marked a box on my 2019 under dependents social security valid. Now it has effected my tax return

Did you try to revisit the section and uncheck the box? 

You can go back through the program and make changes to your tax return. You can try the following options:

• Use the Search tool located in the upper right-hand corner of your screen, Enter the topic you need assistance with.  
• If you see "Jump to" in the search results, click on it and follow the on-screen instructions.
• You can try clicking on Tax Tools and then click on Tools.
• The Tools Center popup will display.  You'll see two options Topic Search or Topic List.  In Topic Search you will have to enter a keyword to search for, and in Topic List you can select a section of your return you would like to revisit.