theme is obsolete ?

hi,
I bought today Maximenu CK Params (com_maximenuck_4.2.8.zip) and Maximenu themes package (presets_maximenu_4.2.1.zip), installed together with mod_maximenuch_8.2.19_j3.zip. I can't work with this the themes, I get the error message "your theme is obsolete for this version of Maximenu CK. Please choose another theme or upgrade it." although each part was downloaded from your site today. Please give me advice what I have to do to deal with the bought themes.
Thank you.

Hi
Please check in the module options >> styles options >> theme
what is set here ? by default when you install the module it is set on "css3megamenu"
this message only appears if you had a previous configuration that was pointing to an old theme, because some CSS have changed (not recently ...)
CEd