Letsencrypt configuration broken

Hi,
my letsencrypt certificate renewal stop last august (2018). From then if I run letsencrypt from ncp-config I get the following errror
Running letsencrypt
/usr/local/bin/ncp/NETWORKING/letsencrypt.sh: line 56: letsencrypt: command not found
Done. Press any key…
what can I do investigat this message and make letsencrypt work again ?
my config : NextcloudPI, raspbian 8, nextcloud 14, NCP-config last update (today).

thank you for your advice !

Hi,
my letsencrypt certificate renewal stop last august (2018). From then if I run letsencrypt from ncp-config I get the following errror
Running letsencrypt
/usr/local/bin/ncp/NETWORKING/letsencrypt.sh: line 56: letsencrypt: command not found
Done. Press any key…
what can I do investigat this message and make letsencrypt work again ?
my config : NextcloudPI, raspbian 8, nextcloud 14, NCP-config last update (today).

thank you for your advice !

Thanks for reporting, please provide output of:

sudo ncp-report

and

sudo cat /var/log/ncp.log

Use pastbin.com or similar and post link here.