Missing or corrupted components causing error on AdAware

Hello experts.
I am getting the following error message on Adware. I don’t know how to solve this error. Please help. Thanks.
"The description for event id 0 from source lavasoft ad-aware service cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. If the event originated on another computer,the display information had to be saved with the event. Following information was included with the event : "Only one instance of service process is allowed". Additional log :Log name – application;source – lavasoft ad-aware service;event id -0;level -error."
