Why wont turboxtax accept that my 1099-R box 7 says B2. Says it cant start with B but it does... confused

I pulled out of my roth IRA retirement account in 2020 from the cares act covid relief and wanted to disperse the amount I took out over the next 3 years. I put in 1099-R exactly as written but it wont accept that my 1099-r on box seven says B2 when it really does...