This article gives you a comprehensive understanding of Java object serialization and deserialization>>>

res://ieframe.dll/acr_ Error.htm the reason for this is that there is a problem with the extension component of your IE browser. Because you don’t know which component has a problem, you should adopt a one size fits all approach to deal with it

In the start/or start key + R, enter regedit to open the registry

In the browser helper objects directory, you can find all the extension components of IE; No matter which one is deleted, delete all the items under this directory, and then press F5

Close the registry, re open IE, you will be surprised to find that the browser is good