I have been using v2.6.  I works fine so far for what I need except that I could not disable the attachments in the notification emails.  Now I need to upgrade to a latest version v2.9.  However, with this latest version, I've received this error when navigate pages:  "Error: Too many parameters (> 120). Cannot perform operation".   What does this error mean?  Should I do to fix it?  I also have tested other version 2.7 and 2.8 as well.  The problem exists.