Please pick a subcategory to help organize the information. Thanks!
Also, the more context you provide with your questions (screenshots, link to an open app, etc.), the more likely you’ll get good help quickly 
My tools on the left side disappeared. I tried with another project, with a new version, changed the password. Nothing helped.
For 2 days now, everything I did that day has not been saved. The next day, when I want to continue, what I did yesterday is not there. I see it, when I click on preview, my work is there, but when I go back to the work platform, there is nothing.
Everything was fine until now.