Fiori App Cost Center - Search Connector can't be created.

Hi experts.

I am trying to create the search connectors for the Fiori App Cost Center (F1623) and I am facing the following error during the creation of it via ESH_COCKPIT or STC01.

I tried to delete all connectors and create them again, but the problem persists. Any suggestion about what could be the reason for that or how to solve it?

Thanks in advance.