One or more of your VST plugins cannot be loaded. Go to your "C:\Program Files\VstPlugins" and disable them all, then start Vegas. After that you have to look one by one which one is causing this problem.
Assuming that you have a modern well-spec'd computer, is your computer's MS Visual C++ Runtime up-to-date? Also, the fault module refers to VST - do you have VST plugins installed that may not be compatible with Vegas Pro? If you have 3rd party VST plugins, check their websites for Vegas Pro compatibility.
icuuc.dll is a Microsoft .dll - is your Windows installation up-to-date and have you done a Google/Bing search for icuuc.dll problems?