Mycroft not installing any skills

Mycroft isn’t installing any skills anymore since I updated. I am using a Raspberry Pi 3B. When I try to install the skill using the mycroft CLI, it returns this error:
10:58:33.145 | ERROR | 744 | mycroft.skills.intent_service:handle_converse_error:234 | converse requested but skill not loaded.

Does anybody know how I could solve this?
Thanks in advance,