for Key and CERT where display as below 

path KEY = "/etc/letsencrypt/live/astppqa601.astppbilling.org/privkey.pem"
CERT = "/etc/letsencrypt/live/astppqa601.astppbilling.org/fullchain.pem"

then we need to change or replace with as below :- 

KEY = "/etc/nginx/ssl/nginx.key"
CERT = "/etc/nginx/ssl/nginx.crt"

 in .env file 
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https://docs.google.com/presentation/d/1nkBXuqHTeSxHwDfTp3c7EoBi7kVd1UV3l-rN6kxKQCg/edit#slide=id.gfcc24f9334_1_32

FreeSwitch pastebin- log :-  https://pastebin.freeswitch.org/
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WHMCS UI details - http://192.168.1.110/whmcs/admin,      U/P :admin/admin                                                                            Need to set in Configuration > setting > WHMCS
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community ASTPP Features Added/removed sheet :- 
https://docs.google.com/spreadsheets/d/1xgUSOYq62T-L98CiZ7mOfZlQQUuF2Q9kXB4Dw7qF8o0/edit#gid=1100623126
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ASTPP enterprise-version v.50 test cases--ADD-ON :- 
https://docs.google.com/spreadsheets/d/1AESStKdt4xVU4-E_WR-uct3LLsv9VE68/edit#gid=1406720906
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ASTPP enterprise-version v.50 test cases--CORE :- 
https://docs.google.com/spreadsheets/d/17WeDz2hQOkVBEaVJsQhwx-IWcd6G6NlhT4owS40iOcU/edit#gid=171140519

https://docs.google.com/spreadsheets/d/1wmf7jkoObp67Aajlw21xJiFGx1AcJ9VOeMeAbTKHPaU/edit#gid=317289533                              version-5.0 Enterprise test case
------------------------------------------------------------------------------------
Realtime billing old test cases :- 
https://docs.google.com/spreadsheets/d/1K1KLlwZ_nLdLY_N3-2fV4q2an7CtFrD8XqQ5rYIv6Qc/edit?ts=5ecdf2ab#gid=591936931
*********************************************************************************
IP phone Details:-  192.168.1.151  (Grandstream), 192.168.1.157   (Grandstream),  192.168.1.161  (Grandstream),    192.168.1.164 (Sangoma),  192.168.1.165  (Akuvox)                                                                                                 Username:-    admin                   Password:-     admin
**************************************************************************************
============================================================================

 entdemo/gibfibre server SSH details:-   ASTPP 5.0 with OpenSIPs GIBFIBRE
==========================================================================
https://entdemo.astppbilling.org
admin/admin

ssh root@46.101.114.158
lfQMVIvviGvWJqsDyj3s

SIP Port : 5067
FS CLI:----                                                                               fs_cli -pzDyZQmh4FqmkBOoR6ndl -r                                         For display all registered SIP Devices :--                    freeswitch@gibfibre> show registrations                                          
 Reload sofia or reload opensip :--                          freeswitch@gibfibre> reload mod_sofia
freeswitch@gibfibre> sofia status                          For ACL Reload:--      freeswitch@gibfibre> reloadacl                                        For closing/back short key:--  CTRL+D                                For Clear screen short key:--  CTRL+L                             Domain for entdemo server :-  gibfibre.astppbilling.org	      entdemo.astppbilling.org
 For enter astpp :- cd /opt/ASTPP/
CTRL - R :- Reverse search. 
shift + Esc + q! and press enter :- for exit