I get an error when trying to navigate to Host --> Host Settings logged in as host.  Has anyone seen this error?  If so, how do I fix it?

ModuleId:327

ModuleDefId:72

FriendlyName:Host Settings

ModuleControlSource:DesktopModules/Admin/HostSettings/HostSettings.ascx

AssemblyVersion:7.2.0

PortalID:0

PortalName:Sana Food System

UserID:1

UserName:host

ActiveTabID:16

ActiveTabName:Host Settings

RawURL:/Host/HostSettings/tabid/16/portalid/0/Default.aspx

AbsoluteURL:/Default.aspx

AbsoluteURLReferrer:http://sanafoodsystem.com.dnnmax.com/Home/tabid/56/Default.aspx?runningDefault=2

UserAgent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.116 Safari/537.36

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:9a695d8f-d9d0-40dd-8f8a-579700c22054

InnerException:The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:System.Convert.FromBase64_Decode

StackTrace:

Message:

DotNetNuke.Services.Exceptions.ModuleLoadException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.  ---> System.FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters. 
   at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
   at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
   at System.Convert.FromBase64String(String s)
   at DotNetNuke.Security.FIPSCompliant.DecryptAES(String encryptedText, String passPhrase, String salt, Int32 iterations)
   at DotNetNuke.Entities.Controllers.HostController.GetEncryptedString(String key, String passPhrase)
   at DotNetNuke.Entities.Host.Host.get_SMTPPassword()
   at DotNetNuke.Modules.Admin.Host.HostSettings.BindSmtpServer()
   at DotNetNuke.Modules.Admin.Host.HostSettings.BindData()
   at DotNetNuke.Modules.Admin.Host.HostSettings.OnLoad(EventArgs e)
   --- End of inner exception stack trace ---