For the past two days I've been trying to go to the marketplace by just tapping on the market widget. Everytime I do this I get the message, "Attention, An error has occurred. Please try again later."
Two notable things I did were updating my phone and deleting a copy of the market widget from my home page. Yesterday, I updated my phone and two weeks ago I deleted the market widget that was on my homescreen. I'm not sure if these actions messed up my connection to the market place or if I just have something turned on or off that shouldn't be.
3. Try performing a soft reset on the device.A soft reset is the most useful tool for resolving a variety of issues. In most cases, a soft reset will not affect data on the device, unless the battery is very low. To complete a soft reset press and hold the power button and touch power off. Once it turns off, press and hold the power button on the device.
4. Try putting the device until safe mode (instruction given in the link below). Safe mode is a method that allows the device to run without non-essential applications. This is beneficial for troubleshooting 3rd party applications. If you do not experience the same issue while in Safe mode, there may be an application that is not native to the device that is causing an issue with your market/widget.