i have one other file from november but i worked more lately so its pretty much nothing, i never had any problems with after effects in 5 years of working with it so i didn’t know it was neccessary to save it more than one time. No, i didnt turn autosave off but there are no autosave files or folders for me so i guess its turned off by default. I have no idea what caused the error, nothing ever crashed or something… ok i’ll try to contact adobe thanks for help….