Thank you so much @ericstaytrue! The 3rd option did it! I know, you didn’t recommend it but the first plugin only changed the date of the picture, not its url, and the second plugin didn’t update the url of the picture.
So, the wp-file-manager fixed my issue.
Thank you again, have a pleasant day!
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This reply was modified 6 years, 7 months ago by adrian95.