@magotfly go too: 1) c:/users/xxxx(your pc name)/ Appdata/Roaming there you should see a folder called "geemod modular", you should delete the entire folder called "geemodmodular" and restart geemod.exe again
(or type %appdata% in windows searchbar and click on "roaming" folder and delete "geemod modular" entire folder)

happy hunting

sorry for the late respons