Billy cannot level up ability?

[acidorestfrombagljas]

Was stuck on it for some time couldn't level it up, sent just a fraction of time i tried to level it up without success.
View attachment billy lvl na 2 nije hteo udje.mp4

 

[aj.pearson]

Match 78625765 could not upgrade seven's ability 1 and 4 above first tier. Seems similar to this