Similar to previous problem — I added the Kennedys GEDCOM to my A-D site instead of Royals. When I tried to delete, it choked. See it’s still stuck. Not sure I the questionable code caused it (one I found online).
Yes, that ‘dodgy’ GEDCOM file is the problem. You shouldn’t try to import it unless you can clean it up first.
To fix the blockage now you need to access the database and delete or empty the table ” _gedcom_chunk”.