por Ken Task.
@Piotr F
Congrats! And correction ... not a lamer but a learner!
And for others ... a teachable moment ... mdljv_ is a prefix ... which can be seen in config.php of the site.
Typically, if left at default, that would have been mdl_ ... but as we can see, in OP's case, it is
mdljv_.
Again ... Congrats!
'SoS', Ken