Internal Server Error

[linker]

HI, I move the chevereto to a new vps. at first it is all be ok. when I try to update 3.6.9,it is fail.and now I open the www.zhen.us ,it show this :Chevereto error: Internal Server Error

I found those in forums but can deal with it.
the php is5.6.14 mysql:5.546

the error_log:

[Wed Nov 04 11:53:24.039978 2015] [fcgid:warn] [pid 4290:tid 140227838461696] [client 69.162.124.231:56496] mod_fcgid: stderr: Stack trace:
[Wed Nov 04 11:53:24.039982 2015] [fcgid:warn] [pid 4290:tid 140227838461696] [client 69.162.124.231:56496] mod_fcgid: stderr: #0 /var/www/vhosts/linker002002.cafe24.com/zhen.us/lib/G/classes/class.db.php(130): G\\DB->__construct()
[Wed Nov 04 11:53:24.039985 2015] [fcgid:warn] [pid 4290:tid 140227838461696] [client 69.162.124.231:56496] mod_fcgid: stderr: #1 /var/www/vhosts/linker002002.cafe24.com/zhen.us/app/loader.php(42): G\\DB::getInstance()
[Wed Nov 04 11:53:24.039988 2015] [fcgid:warn] [pid 4290:tid 140227838461696] [client 69.162.124.231:56496] mod_fcgid: stderr: #2 /var/www/vhosts/linker002002.cafe24.com/zhen.us/index.php(20): include_once('/var/www/vhosts...')
[Wed Nov 04 11:53:24.039991 2015] [fcgid:warn] [pid 4290:tid 140227838461696] [client 69.162.124.231:56496] mod_fcgid: stderr: #3 {main}

please help .
thanks~

 

[Rodolfo]

Enable debug_mode 3 and paste the error.

 

[linker]

Enable debug_mode 3 and paste the error.

I change this $settings['debug_level'] = 1; 1 =>3
Reload website and show

Fatal error [400]: SQLSTATE[HY000] [1045] Access denied for user 'zeazi'@'localhost' (using password: YES)
Triggered in /lib/G/classes/class.db.php at line 119

Stack trace:
#0 /lib/G/classes/class.db.php(130): G\DB->__construct()
#1 /app/loader.php(42): G\DB::getInstance()
#2 /index.php(20): include_once('/app/loader.php')

 

[Rodolfo]

Just like the error reads, the database details of app/settings.php are wrong. Update that file to reflect your current database values.

 

[linker]

That worked! THANKS! GREAT SUPPORT! A+ Thanks Rodolfo!