This showed up when translating: "An error occurred when updating this CSV profile. Perhaps it already exists." Source string location koha-tmpl/intranet-tmpl/prog/en/modules/tools/csv-profiles.tt:69 It seems logical that if you are updating something it already exists.
Same thing here: "An error occurred when updating this quote. Perhaps it already exists." Source string location koha-tmpl/intranet-tmpl/prog/en/modules/tools/quotes.tt:59