There may be issues ongoing with the Click Text activity and bugs being identified.
I would suggest just using a click activity rather than ‘click text’.
Each of your Antragsnummer items will have similar selectors with just a variation in the attribute for the number itself, possibly innertext. You can create a selector for each number by adding a variable to replace, for example, innertext and place this alongside the common attributes of the Antragsnummer selectors. This can be tested using the UIExplorer to verify your selector syntax