I had to create a subsite and move the form to the new site. I imported the form and reconfigured parts of it. Now when I try to use it I get the following error:
Error: EPP Registration is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: Could not find file 'C:\DotNetNuke\Portals\2\DynamicForms_Exports\PDF_5202ed4c155-ac0f-4850-bb72-7a05ed3ca1ea.pdf'. ---> System.IO.FileNotFoundException: Could not find file 'C:\DotNetNuke\Portals\2\DynamicForms_Exports\PDF_5202ed4c155-ac0f-4850-bb72-7a05ed3ca1ea.pdf'. File name: 'C:\DotNetNuke\Portals\2\DynamicForms_Exports\PDF_5202ed4c155-ac0f-4850-bb72-7a05ed3ca1ea.pdf' at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) at System.Net.Mail.AttachmentBase.SetContentFromFile(String fileName, String mediaType) at System.Net.Mail.AttachmentBase..ctor(String fileName) at System.Net.Mail.Attachment..ctor(String fileName) at DotNetNuke.Services.Mail.Mail.SendMail(String MailFrom, String MailTo, String Cc, String Bcc, String ReplyTo, MailPriority Priority, String Subject, MailFormat BodyFormat, Encoding BodyEncoding, String Body, String[] Attachment, String SMTPServer, String SMTPAuthentication, String SMTPUsername, String SMTPPassword, Boolean SMTPEnableSSL) at DotNetNuke.Services.Mail.Mail.SendMail(String MailFrom, String MailTo, String Cc, String Bcc, MailPriority Priority, String Subject, MailFormat BodyFormat, Encoding BodyEncoding, String Body, String Attachment, String SMTPServer, String SMTPAuthentication, String SMTPUsername, String SMTPPassword, Boolean SMTPEnableSSL) at DotNetNuke.Services.Mail.Mail.SendMail(String MailFrom, String MailTo, String Cc, String Bcc, MailPriority Priority, String Subject, MailFormat BodyFormat, Encoding BodyEncoding, String Body, String Attachment, String SMTPServer, String SMTPAuthentication, String SMTPUsername, String SMTPPassword) at DataSprings.Modules.DynamicForms.DynamicForms.ProcessEvents(Boolean blnRedirectOnly, Boolean blnPaymentGateway, String strPaymentStatus, String strResponseID, Int32 intPaymentUserID) --- End of inner exception stack trace ---