Why has libreoffice stopped loading

I have been using Libreoffice Calc and it has stopped loading any programmes. Have I done something wrong or do I need to do an update? I am using windows 7.

same problem; how to avoid stopping?

I have solved the problem by updating to the latest version. Had to remove the old version before new LO would load. Tested and everything working o.k.

(OP stated has solved by removal then new install)