theDBguy, thank you for pointing me in the right direction I appreciate your help.
I edited the code to the below and it worked.
InttxtMCID = Nz(txtMCID, 0)
strtxtMemberId = Nz(txtMemberId, Null)
Set db = CurrentDb
'Fetch and populate the Member information on the form
strSQLMember = "SELECT...