graficaporro wrote: This is bad.
I tried to duplicate the entries of the System Actions, but it dont work, and now the images are corrupted again
I don't know why. Is it a bug?

I will take a look asap and let you know what went wrong if possible.

Ok - I cleaned up the bad items.

Regarding your translation question - do you want to translate to multiple languages or do you just need to change the wording everywhere?

graficaporro wrote: If you login (Use for test: user: mariorossi pass: mariorossi) in the front end and change the canvas image (2 times), you will see corrupted item in the activity. There is still the problem.
Check it out.
For the translation. I just need to translate everything in italian. It's a single language site.

ha - yup was able to reproduce - it is definitely a bug in logic as when a new image is uploaded the old one is removed.
This means that old activity stream messages will break.

I have opened a ticket for this here:

forge.joomlapolis.com/issues/5630

Regarding the language of the activity messages.

I did the following as an example for you - I hope you can adjust and follow similar logic for other ones.

For the System action
CB Activity CB Gallery - Upload Logs activity for uploaded items. Everybody 15

I first unpublished it (as a system action)
I then copied it.
I edited the copy in the Actions area and added an ! (mark) before each word that can be translated in the Title parameter.

Hope you can follow the logic for other items you wish to localize.