Since my CC collapsed (cause unknown) and can't be reloaded (error 48 - whatever that may mean

Since my CC Page collapsed (cause unknown) and since it can't be re-loaded (error 48 whatever that may mean) and I am asked to do things which seem dangerous to un-nerdy me, "try that and see if it works", shall I simply wait for the new version - and will that download?

In the meantime, I see that my Assets, which I can find only by "Dungeons" type ingenuity, have not synched, for a long while probably since CC collapsed -now I have not means to command a synch..... How should I get them to start synching?
I am attaching your message - maybe you can give me a step by step recovery of CC which does not look like a "try this and see if it works deal".

Mike