I?m trying to install memcached package using ?apt install memcached? and have the following error

#************************************************* ************************************************** *
Setting up memcached (1.6.6-1) ...
adduser: No UID is available in the range 100-999 (FIRST_SYS_UID - LAST_SYS_UID).
adduser: The user `memcache' was not created.
dpkg: error processing package memcached (--configure):
installed memcached package post-installation script subprocess returned error exit status 1
Setting up postfix (3.5.4-1) ...
adduser: No UID is available in the range 100-999 (FIRST_SYS_UID - LAST_SYS_UID).

adduser: The user `postfix' was not created.
dpkg: error processing package postfix (--configure):
installed postfix package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
memcached
postfix
needrestart is being skipped since dpkg has failed
E: Sub-process /usr/bin/dpkg returned an error code (1)
#************************************************* ************************************************** *

Is anyone has any idea how to fix this