what effect did absolutism have in Germany and Eastern Europe and why did absolutism fail in England?

Well if you go back far enough, absolutism did work in England back when it was a monarchy.

But I believe you're referring to the 20th century:

USSR: The soviet union turned to communism in 1917 and did so out of desparation. The current governement just wasn't providing them with essential living neccessities. Many people have gone without meals. They needed change, and fast. The communist theory held that the governments job should take care of every aspect of its persons life. So basically they took this route out of desparation.

Germany:
At the end of WWI, the treaty of versailles left germany in a complete state of desparation. The debt that the allied countries made Germany pay back was enormous. Germany simply couldn't pay this, so inflation sky rocketed so much that it made millionairs poor. Soup kitchens were common on every courner in the 20s. There are pictures of an American bar using german money as confetti to mock how worthless their dollar (deutschmark) has become. This is when they turned to absolutism too. Adolf Hitler got them out of their depression, and they put all faith in him.

So I believe your answer is this: Germany and Eastern Europe experienced a state of desparation far greater than England did during that period. Because of this they formed governments that led to absolutism.

The other part of your question - what effect it had:
I could go on and on about this, but here's some topics you can research about the effects of absolutism in Germany and Eastern Europe
Germany - WWII, the Holocaust, Loosing freedom of speech and fair trial,
Russia - Loosing Freedoms as well, Stalin, Farm Collectivization, the Goulags,