RPI Cron DotNET not working

I have version 5.1.1 on RPI and my cron is not working. It won't start. I installed Dot NET https://www.petecodes.co.uk/install-and-use-microsoft-dot-net-7-with-the...
Manually run.net.sh works. In crontab I have 0 3 * * * /home/pi/.wg++/run.net.sh
The mono based version works.
thank you very much for your help