ncp-update

[gavinjb22]

When I Enter ~$ sudo ncp-update I get the following error

Downloading updates
Performing updates
NextcloudPi updated to version v1.56.0
Configuring serverid ...

Fatal error: Uncaught Error: Call to undefined function posix_getuid() in /var/www/nextcloud/occ:15
Stack trace:
#0 /var/www/nextcloud/occ(32): dropPrivileges()
#1 {main}
thrown in /var/www/nextcloud/occ on line 15
Error while applying update 1.57.0. Exiting...