User / Group name restricted

Hi there! I am working on the step by step #5 and I am at the part where I design record types, specifically creating the W#SA maintenance record type. I ran into the issue of not having editing access in order to GENERATE EVENT RECORD TYPES, and when I tried editing my access to be an admin/editor, I believe I removed the admin group somehow, because now it is appearing as "[Group Name Restricted]." Any thoughts on how I switch this back to W#SA Admin?

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