revisen esta ruta
/var/www/html/module
[root@issabel modules]# ls -la
total 432
drwxr-xr-x. 108 asterisk asterisk 4096 Jun 11 2017 .
drwxr-xr-x. 17 asterisk asterisk 4096 Feb 15 10:39 ..
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 addons_availables
drwxr-xr-x. 9 root root 4096 Feb 15 10:35 address_book
drwxr-xr-x 9 root root 4096 Feb 15 09:29 agent_console
drwxr-xr-x 8 root root 4096 Feb 15 09:29 agents
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 antispam
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 applet_admin
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 asterisk_cli
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 asterisk_log
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 backup_restore
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 billing_rates
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 billing_report
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 billing_setup
drwxr-xr-x 8 root root 4096 Feb 15 09:29 break_administrator
drwxr-xr-x. 9 root root 4096 Feb 15 10:35 calendar
drwxr-xr-x 8 root root 4096 Feb 15 09:29 callcenter_config
drwxr-xr-x 8 root root 4096 Feb 15 09:29 calls_detail
drwxr-xr-x 8 root root 4096 Feb 15 09:29 calls_per_agent
drwxr-xr-x 8 root root 4096 Feb 15 09:29 calls_per_hour
drwxr-xr-x 8 root root 4096 Feb 15 09:29 campaign_in
drwxr-xr-x 7 root root 4096 Feb 15 09:29 campaign_monitoring
drwxr-xr-x 9 root root 4096 Feb 15 09:29 campaign_out
drwxr-xr-x 8 root root 4096 Feb 15 09:29 cb_extensions
drwxr-xr-x. 9 asterisk asterisk 4096 Feb 15 09:06 cdrreport
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 channelusage
drwxr-xr-x 8 root root 4096 Feb 15 09:29 client
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 conference
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 control_panel
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 currency
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 dashboard
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 dest_distribution
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 dhcp_by_mac
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 dhcp_clientlist
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 dhcp_server
drwxr-xr-x 8 root root 4096 Feb 15 09:29 dont_call_list
drwxr-xr-x 8 root root 4096 Feb 15 09:29 eccp_users
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 email_accounts
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 email_domains
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 email_list
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 email_relay
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 email_stats
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 email_template
drwxr-xr-x. 10 asterisk asterisk 4096 Feb 15 09:06 endpoint_configurator
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 extensions_batch
drwxr-xr-x 8 root root 4096 Feb 15 09:29 external_url
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 faxclients
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 faxlist
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 faxmaster
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 faxnew
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 faxqueue
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 faxutils
drwxr-xr-x. 9 asterisk asterisk 4096 Feb 15 09:06 faxviewer
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 festival
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 file_editor
drwxr-xr-x 8 root root 4096 Feb 15 09:29 form_designer
drwxr-xr-x 8 root root 4096 Feb 15 09:29 form_list
drwxr-xr-x 8 root root 4096 Feb 15 09:29 graphic_calls
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 graphic_report
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 grouplist
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 10:18 group_permission
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 hardware_detector
drwxr-xr-x 8 root root 4096 Feb 15 09:29 hold_time
drwxr-xr-x 8 root root 4096 Feb 15 09:29 ingoings_calls_success
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 instantmessaging
drwxr-xr-x. 3 asterisk asterisk 4096 Feb 15 09:06 issabelpanel
drwxr-xr-x. 6 asterisk asterisk 4096 Feb 15 09:06 issabelutils
drwxr-xr-x. 3 asterisk asterisk 4096 Feb 15 09:06 ivr
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 language
drwxr-xr-x 8 root root 4096 Feb 15 09:29 login_logout
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 meet
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 missed_calls
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 monitoring
drwxr-xr-x. 9 asterisk asterisk 4096 Feb 15 09:06 myex_config
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 network_parameters
drwxr-xr-x. 9 asterisk asterisk 4096 Feb 15 09:06 packages
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 pbxadmin
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 ping
drwxr-xr-x 8 root root 4096 Feb 15 09:29 queues
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 recordings
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 registration
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 remote_smtp
drwxr-xr-x 8 root root 4096 Feb 15 09:29 rep_agent_information
drwxr-xr-x 7 root root 4096 Feb 15 09:29 rep_agents_monitoring
drwxr-xr-x 7 root root 4096 Feb 15 09:29 rep_incoming_calls_monitoring
drwxr-xr-x 8 root root 4096 Feb 15 09:29 reports_break
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 repositories
drwxr-xr-x 8 root root 4096 Feb 15 09:29 rep_trunks_used_per_hour
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sec_accessaudit
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sec_advanced_settings
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sec_fb_admin
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 sec_fb_banned
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 sec_letsencrypt
drwxr-xr-x. 6 asterisk asterisk 4096 Feb 15 09:06 sec_portknock_if
drwxr-xr-x. 6 asterisk asterisk 4096 Feb 15 09:06 sec_portknock_users
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sec_ports
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sec_rules
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sec_weak_keys
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sendfax
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 shutdown
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 sphones
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 summary_by_extension
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 text_to_wav
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 themes_system
drwxr-xr-x. 7 asterisk asterisk 4096 Feb 15 09:06 time_config
drwxr-xr-x. 7 asterisk asterisk 4096 Jun 11 2017 userlist
drwxr-xr-x. 8 asterisk asterisk 4096 Feb 15 09:06 vacations
drwxr-xr-x. 9 asterisk asterisk 4096 Feb 15 09:06 voicemail
como ven algunos modulos estan con usuario y grupo root.
los usarios y grupos de issabelpbx son asterisk:asterisk
y el httpd también son los mismos usuarios.
puede ser por ahí el problema.