I’m on disability so what number do I put for employer number

Do you get Social Security Disability and a SSA-1099?    If it's asking for an EIN number you are entering it in the wrong place. There is no EIN on social security SSA-1099.

Enter a SSA-1099, SSA-1099-SM or RRB-1099 under

Federal Taxes (Personal for Home&Business)

Wages and Income

Then scroll down to Retirement Plans and Social Security

Then the second line - Social Security (SSA-1099. RRB-1099) - click the Start or Revisit button

If you are receiving Social Security Disability payments, you are in the wrong section of the program.  There is no EIN or employer number on a SS statement.

To enter Social Security benefits reported on form SSA-1099

Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Retirement Plans and Social Security
On Social Security (SSA-1099, RRB-1099), click the start or update button