Problem with no group

[phili67]

When you assign a person to a group, there is a bug...

Collected Value Title	Data
Page Name	/PersonView.php
Screen Size	1296x2304
Window Size	1131x1608
Page Size	1131x1608
Platform Information	Linux debian-10-7 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28) x86_64
PHP Version	7.3.19-1~deb10u1
SQL Version	5.5.5-10.3.27-MariaDB-0+deb10u1
TSMO Version	2.0.0
Reporting Browser	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0 Safari/605.1.15
Prerequisite Status	All Prerequisites met
Integrity check status	{"status":"failure","message":"Signature definition file signature failed validation"}
Apache Modules	core,mod_so,mod_watchdog,http_core,mod_log_config,mod_logio,mod_version,mod_unixd,mod_access_compat,mod_alias,mod_auth_basic,mod_authn_core,mod_authn_file,mod_authz_core,mod_authz_host,mod_authz_user,mod_autoindex,mod_deflate,mod_dir,mod_env,mod_filter,mod_mime,prefork,mod_negotiation,mod_php7,mod_reqtimeout,mod_rewrite,mod_setenvif,mod_status