student academic can't spawn tables

my account plan says the following: 

Academic (Student)

Single user

Up to 20 models

Up to 100 tables per model

I am nowhere near those model and table limits but, when I try to spawn new tables I get the following error: 

"You have used 0 tables from your 100-table limit To create larger models, please sign up and then upgrade you account plan"

I talked to my database instructor and she seemed to imply I'm the only one in the class experiencing this issue and told me it must be on vertabelo's end and that I should ask them..