problem with editing or adding components

[Connie]

Thank you for your answer. The problem is still there... I have almost finished the website and if I now do new installation I will need to do it all again? I have lots of galleries and plugins installed. I made Health Check and everything is OK. Is there anything else?

it is always good to read the wiki.

See here: http://get-simple.info/wiki/installation:migrating

you see the folders which you have to save before you re-install and if you follow the process there, you will not loose any data or work