When I try open LO I get a message saying LO does not responding

I have an iMac and have been using Libra Office to write my novel. I tried to open it and got message saying Could not open because Libra Office did not respond. Help please.

Hi banne:

You did not supply any information so I will guess your operating system is macOS Sierra. If not, you will need to post more information so that your question can be answered.

See the link below for some information and see if it applies to your problem.