I switched to English in WP (rather than Franch), I guessed the english message could be more explanatory. Now the message is different it says the import file is empty (instead of there is no file to import), and I can assure you it is not empty at all.
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2022 was a big year for Advanced Custom Fields, with more capabilities, a new generation of ACF Blocks, a refreshed UI, and a new home. Our year in review post looks at advancements we’ve made and offers a glimpse of the future. https://t.co/HahJUCcyH4