Web demo is displayed right but cannot access the node avalibale

+1 vote
Hello,

Web demo is displayed right but cannot access the node avalibale. I mean I can access the main page of web demo and it displays the chains that I created but when I click on the chain name or node name it shows white page like loading forever ? I use php7.2
asked Feb 7 by musharraf90
It's hard to diagnose a blank screen, please take a look in your server's error_log and let us know what you find there.
how to find error_log? I used cloud9 aws. Which command I wrote to find it
You need to look on your server. It could be in many places. See this question for some hints about how to use PHP to find it:

https://stackoverflow.com/questions/5127838/where-does-php-store-the-error-log-php-5-apache-fastcgi-and-cpanel
Thank you, this is what I found in error.log

[Mon Feb 07 06:25:01.889518 2022] [mpm_prefork:notice] [pid 938] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Mon Feb 07 06:25:01.889547 2022] [core:notice] [pid 938] AH00094: Command line: '/usr/sbin/apache2'
[Mon Feb 07 06:57:25.164683 2022] [mpm_prefork:notice] [pid 938] AH00169: caught SIGTERM, shutting down
[Mon Feb 07 06:57:25.377933 2022] [mpm_prefork:notice] [pid 16091] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Mon Feb 07 06:57:25.378002 2022] [core:notice] [pid 16091] AH00094: Command line: '/usr/sbin/apache2'
[Mon Feb 07 07:53:23.095303 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Notice:  Undefined variable: sendaddresses in /var/www/html/multichain-web-demo/page-publish.php on line 77, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095935 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Stack trace:, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095950 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   1. {main}() /var/www/html/multichain-web-demo/index.php:0, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095957 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   2. require_once() /var/www/html/multichain-web-demo/index.php:85, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095966 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Warning:  Invalid argument supplied for foreach() in /var/www/html/multichain-web-demo/page-publish.php on line 77, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095970 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Stack trace:, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095976 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   1. {main}() /var/www/html/multichain-web-demo/index.php:0, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095982 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   2. require_once() /var/www/html/multichain-web-demo/index.php:85, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095991 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Warning:  Invalid argument supplied for foreach() in /var/www/html/multichain-web-demo/page-publish.php on line 91, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095995 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Stack trace:, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.096000 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   1. {main}() /var/www/html/multichain-web-demo/index.php:0, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.096005 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   2. require_once() /var/www/html/multichain-web-demo/index.php:85, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 08:38:04.382369 2022] [mpm_prefork:notice] [pid 16091] AH00169: caught SIGTERM, shutting down
[Mon Feb 07 21:53:43.093426 2022] [mpm_prefork:notice] [pid 936] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Mon Feb 07 21:53:43.174217 2022] [core:notice] [pid 936] AH00094: Command line: '/usr/sbin/apache2'
[Mon Feb 07 06:25:01.889518 2022] [mpm_prefork:notice] [pid 938] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Mon Feb 07 06:25:01.889547 2022] [core:notice] [pid 938] AH00094: Command line: '/usr/sbin/apache2'
[Mon Feb 07 06:57:25.164683 2022] [mpm_prefork:notice] [pid 938] AH00169: caught SIGTERM, shutting down
[Mon Feb 07 06:57:25.377933 2022] [mpm_prefork:notice] [pid 16091] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Mon Feb 07 06:57:25.378002 2022] [core:notice] [pid 16091] AH00094: Command line: '/usr/sbin/apache2'
[Mon Feb 07 07:53:23.095303 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Notice:  Undefined variable: sendaddresses in /var/www/html/multichain-web-demo/page-publish.php on line 77, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095935 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Stack trace:, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095950 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   1. {main}() /var/www/html/multichain-web-demo/index.php:0, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095957 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   2. require_once() /var/www/html/multichain-web-demo/index.php:85, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095966 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Warning:  Invalid argument supplied for foreach() in /var/www/html/multichain-web-demo/page-publish.php on line 77, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095970 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Stack trace:, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095976 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   1. {main}() /var/www/html/multichain-web-demo/index.php:0, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095982 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   2. require_once() /var/www/html/multichain-web-demo/index.php:85, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095991 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Warning:  Invalid argument supplied for foreach() in /var/www/html/multichain-web-demo/page-publish.php on line 91, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.095995 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP Stack trace:, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.096000 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   1. {main}() /var/www/html/multichain-web-demo/index.php:0, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 07:53:23.096005 2022] [php7:notice] [pid 16789] [client 129.120.67.51:30634] PHP   2. require_once() /var/www/html/multichain-web-demo/index.php:85, referer: http://3.17.25.25/multichain-web-demo/?chain=default
[Mon Feb 07 08:38:04.382369 2022] [mpm_prefork:notice] [pid 16091] AH00169: caught SIGTERM, shutting down
[Mon Feb 07 21:53:43.093426 2022] [mpm_prefork:notice] [pid 936] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Mon Feb 07 21:53:43.174217 2022] [core:notice] [pid 936] AH00094: Command line: '/usr/sbin/apache2'
[Mon Feb 07 23:12:05.160405 2022] [mpm_prefork:notice] [pid 936] AH00169: caught SIGTERM, shutting down
[Mon Feb 07 23:12:05.296577 2022] [mpm_prefork:notice] [pid 6320] AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Mon Feb 07 23:12:05.296626 2022] [core:notice] [pid 6320] AH00094: Command line: '/usr/sbin/apache2'
could you answer me plz
There's no visible problem in those logs that would explain why the page is not loading, sorry. I'm not sure what the cause is, perhaps it's just very slow?

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