Sign of ill omen is does not select i Charactermancer

I try to level up a Warlock to level 5 and select Sign of ill omen. As you see, it does not quite work. Also, was unable to select any cantrips with Pact of the Tome on level 3.

Hello Jens F., I am sorry that you have encountered these issues with the charactermancer.  To rule out potential causes and provide a baseline for support,  please carefully work through all of the following steps of our guide to   Solving Technical Issues : Step 1: Make sure to use the right browser Please check if these issues persist when using both Chrome  and  Firefox. Step 2: Ensure that there are no extensions/addons interfering with Roll20 Please disable  all  add-ons/extensions. Step 3: Clear your cache If none of the above succeeds, please thoroughly work through all of the requested information in  Step 4 .  (Don't forget the name of the campaign and character sheet, as well as the complete Console Log!) Thank you!