Hello,
I just put my WP website online https://lenke.000webhostapp.com.
I have a permanent error: when I try to upload images, I get this message in red: HTTP Error.
Does anyone know what’s this about?
Thank you.
Hi monica!
How much size do your images have?
Can you upload small images, such as ~ 200kb onese?
my image is actually a logo and has 11.9 kb. But I tried to upload more images of different sizes, and the result is the same ):
I have checked online, and this problem can mean anything. A reliable fix has not been found yet.
I suspect it as being caused by the recent migration you’ve done. Incompatibility issues.
I will look into it. 
Actually I didn’t do a ‘migration’. I simply re-uploaded the site from my local back-up…It seems to run ok, I have just this problem with images.
Here’s the capture of the upload error (not in English, but quite understandable…)
And here, in the plugin section, I have the following message (I don’t know what I’ m supposed to do, for the moment I have no plugin installed):
"Some files appear to be missing or out of place. Please re-install plugin or remove /storage/h11/948/1639948/public_html/wp-content/advanced-cache.php.W3 Total Cache Error: "
Try removing the cache plugin.
I just did it but the error is still there 
I have sent you a PM.
I would need the username/password of your WP admin page 
@monicalaura [quote=“monicalaura, post:5, topic:67901”]
Actually I didn’t do a ‘migration’. I simply re-uploaded the site from my local back-up
[/quote]
Seems issue with the uploaded backup.
Also i can see that you’ve only installed the theme, No modifications done yet.
I would recommend to freshly install wordpress and then install the theme again, this will solve all your issues.