lots of perl warnings

May be related to my minimalistic arc.conf:

[lrms]
lrms=fork

[arex]
controldir=/var/arc/control
sessiondir=/var/arc/session

[cluster]
[queue:fork]

In infoprovider.log:

[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value in concatenation (.) or string at /opt/arc/share/arc/ARC1ClusterInfo.pm line 980.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value in numeric eq (==) at /opt/arc/share/arc/ARC1ClusterInfo.pm line 1013.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $admindomain in concatenation (.) or string at /opt/arc/share/arc/ARC1ClusterInfo.pm line 1160.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value in concatenation (.) or string at /opt/arc/share/arc/ARC1ClusterInfo.pm line 1167.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value in numeric eq (==) at /opt/arc/share/arc/ARC1ClusterInfo.pm line 1179.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value in lc at /opt/arc/share/arc/ARC1ClusterInfo.pm line 3424.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] 'PERL: Use of uninitialized value in lc at /opt/arc/share/arc/ARC1ClusterInfo.pm line 3424.' repeated more than once, skipping... set loglevel to VERBOSE to see all messages.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $bdii_run_dir in substitution (s///) at /opt/arc/share/arc/InfosysHelper.pm line 145.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $bdii_run_dir in concatenation (.) or string at /opt/arc/share/arc/InfosysHelper.pm line 146.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $bdii_var_dir in substitution (s///) at /opt/arc/share/arc/InfosysHelper.pm line 151.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $bdii_var_dir in concatenation (.) or string at /opt/arc/share/arc/InfosysHelper.pm line 152.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $bdii_update_pid_file in concatenation (.) or string at /opt/arc/share/arc/InfosysHelper.pm line 155.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $infosys_ldap_run_dir in substitution (s///) at /opt/arc/share/arc/InfosysHelper.pm line 161.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $infosys_ldap_run_dir in concatenation (.) or string at /opt/arc/share/arc/InfosysHelper.pm line 162.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $bdii_run_dir in concatenation (.) or string at /opt/arc/share/arc/InfosysHelper.pm line 168.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $bdii_var_dir in concatenation (.) or string at /opt/arc/share/arc/InfosysHelper.pm line 169.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $file in stat at /opt/arc/share/arc/InfosysHelper.pm line 51.
[2018-06-06 11:35:43] [CEinfo.pl] [WARNING] [20121] PERL: Use of uninitialized value $pidfile in concatenation (.) or string at /opt/arc/share/arc/InfosysHelper.pm line 172.