xquartz cant open

Hello,

I have version 10.13.3 mac. Xquartz was working fine before but now I cannot open it or any programs that use it. I have tried reinstalling x quartz 2.7.7 and 2.7.8 and 2.7.11 restarting everytime but it does not open

I get this message when I try and open xquartz:

The application “XQuartz” can’t be opened.

Best,

Dominique