I tried to upload some pictures like 4 o 5 times, getting this error.
Now I’m checking my Media section and WordPress uploaded a corrupted file almost 5.000 times, and that files are not visible with the FTP, only at WordPress. And I have to delete them…
Anyway, I deactivated all my plugins and the error dissappeared.
I used this answer: https://wordpress.org/support/topic/newly-added-image-links-not-working-internal-server-error-1?replies=2
Same problem here.
I tried to disable my plugins and this problem stays the same.
Same problem here.
I’ve detected another problem related at the Media section:
I’ve uploaded some pictures today (getting a HTTP error) and now that pictures are duplicated SEVERAL times at the Media section, but they don’t appear duplicated at the uploads folder, vía FTP.
Crazy and frustrating.
