1099R

Entered all my information for 1099R however I keep getting this error to fix asking me to fill out "Pension, Annuities and IRA worksheets TP: Part D, Line 2 must be entered"  I do not have any information for line 2 nor have we taken a lump sum distribution.  Don't understand how to fix this error.  We receive a monthly distribution from IRA account no lump sum distribution or conversion to Roth 401K.  Please help resolve.