Connection Key not saved

[yantis]

Just trying out the V3 plugin and it seems the connection key is not saved, although a message appears saying "The operation completed successfully".

It seems other options can't be saved either in the Datafeedr V3 plugin. However the wordpress website itself runs fine.

I checked the database and couldn't find any table with a name containing "_xopt" (sorry for peeking into the source :P).

Do you think there might be something wrong with the MySQL server?