I use CB 2.3.0 with no problem with my database.
But, when I try to implement your new version CB 2.4.0, I obtain this next message:
--> Alerte
BLOB/TEXT column 'cb_heure1_1' used in key specification without a key length
If I verify my database with phpmyadmin, and the structure of the table 'comprofiler' and this index: the length of that key is '3' (well written in the definition of my index) !
And all is fine when I use CB and this database !!!
Question: what is the real problem ... and the just solution to implement CB 2.4.0 ?
Greetings and happy new year to all your Joomlapolis Team !