I'm having crazy issues on checkout page - it kicks the client out of the checkout:
500 Server error on /checkout/onepage/progress/?toStep=shipping_method
sometimes on billing too.
The issue is intermittent, sometimes it shows up, sometimes not.
SUPEE 7405 I have applied both 1.0 and 1.1 via FTP(direct file upload), but the issue with checkout still persists!
Please help!
PS: Both MCRYPT, MBSTRING and SOAP are enabled on the server. I'm running PHP 5.4.45 with APC 3.1.13 on 1230 Intel CPU, 16GB of RAM, 2TB Drives
Update:
Chrome Console spits this out:
prototype.js:1530 POST /checkout/onepage/saveBilling/ 500 (Internal Server Error)
Ajax.Request.Class.create.request @ prototype.js:1530 Ajax.Request.Class.create.initialize @ prototype.js:1495 (anonymous function) @ prototype.js:429 klass @ prototype.js:101Billing.save @ /skin/frontend/base/default/js/opcheckout.js:313 onclick @ /checkout/onepage/:679
UPDATE: Apache Logs have these types of errors:
24.87.30.186 - - [21/Apr/2016:16:13:43 -0700] "POST /checkout/onepage/saveBilling/ HTTP/1.1" 500 - "https://www.example.com/checkout/onepage/" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36"
216.129.65.170 - - [21/Apr/2016:16:08:00 -0700] "GET /checkout/onepage/progress/?toStep=payment HTTP/1.1" 500 461 "https://www.example.com/checkout/onepage/" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36"
216.129.65.170 - - [21/Apr/2016:16:08:00 -0700] "GET /checkout/onepage/progress/?toStep=payment HTTP/1.1" 500 461 "https://www.example.com/checkout/onepage/" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36"
UPDATE
I just ran tail -f command on error_log when the error happened:
tail -f 200 /usr/local/apache/logs/error_log
[Fri Apr 22 08:37:36.234374 2016] [fcgid:warn] [pid 20874:tid 140365143197440] ( [Fri Apr 22 08:41:52.653576 2016] [fcgid:warn] [pid 20892:tid 140365143197440] (104)Connection reset by peer: [client 209.82.102.74:29184] mod_fcgid: error reading data from FastCGI server, referer: https://www.example.com/checkout/onepage/ [Fri Apr 22 08:41:52.653629 2016] [core:error] [pid 20892:tid 140365143197440] [client 209.82.102.74:29184] End of script output before headers: index.php, referer: https://www.example.com/checkout/onepage/ [Fri Apr 22 08:41:52.743064 2016] [fcgid:error] [pid 20871:tid 140365330593728] mod_fcgid: process /usr/local/cpanel/cgi-sys/php5(21528) exit(communication error), get signal 11, possible coredump generated zend_mm_heap corrupted [Fri Apr 22 08:41:52.791456 2016] [fcgid:warn] [pid 20892:tid 140365143197440] (104)Connection reset by peer: [client 209.82.102.74:29184] mod_fcgid: error reading data from FastCGI server, referer: https://www.example.com/checkout/onepage/ [Fri Apr 22 08:41:52.791491 2016] [core:error] [pid 20892:tid 140365143197440] [client 209.82.102.74:29184] End of script output before headers: index.php, referer: https://www.example.com/checkout/onepage/
[Fri Apr 22 08:45:52.376926 2016] [core:error] [pid 20873:tid 140365284730624] [client 209.82.102.74:29240] End of script output before headers: index.php, referer: https://www.example.com/checkout/onepage/ [Fri Apr 22 08:45:52.540121 2016] [fcgid:error] [pid 20871:tid 140365330593728] mod_fcgid: process /usr/local/cpanel/cgi-sys/php5(22178) exit(communication error), get signal 11, possible coredump generated [Fri Apr 22 08:45:52.540414 2016] [fcgid:error] [pid 20871:tid 140365330593728] mod_fcgid: process /usr/local/cpanel/cgi-sys/php5(22113) exit(communication error), get signal 11, possible coredump generated