errors 42127,42136,42145,42126

when i scan my computer, i resieved a message:
-cab archieve was corrupt
-error 42126,42127,42136,42145
what that mean?

I wouldn’t worry about any corrupt archives, it may simply be that avast can’t extract the files inside to scan them.

Was the error message accompanied by all those error numbers or did the numbers relate to other errors ?

You could try a forum search for the error numbers and see what that returns.