HTTP ERROR 500 CrossRef XML Export Plugin

ferry · February 19, 2018, 6:45pm

I have OJS 3.0.1.0 Installed, when I click the submit button in the crossref xml export plugin, I get the HTTP 500 error.

Same problem exist when i clicked Download XML button, ends up with the same error

My server installed on AWS EC2 , with centos version 7.3.1611 and PHP version 5.6.33 and i have also installed PHP Curl for this.

vvucic · February 19, 2018, 10:17pm

Please post php error log here so we can investigate issue.

ferry · February 20, 2018, 1:31am

here is my php error_log 22%20AM

vvucic · February 20, 2018, 9:15am

I think that @asmecher can help in explaining what php fatal error can tell about cause of issue.

Vitaliy · February 20, 2018, 2:20pm

Did you install php-xml extention?

ferry · February 20, 2018, 5:50pm

ah, i’m just doing what you say to install php56w-xml-5.6.33-1.w7.x86_64 for my php package. Now the previous problem has gone, i didn’t get any HTTP 500 error, but the new problem exist when i try again to submit button, now i get message from browser 500 internal server error and here is php log screen shoot

11%20AM 41%20AM

asmecher · February 20, 2018, 7:35pm

Hi @ferry,

It looks like you have a 30-second time limit on requests in your web server’s configuration, and this request may need more than 30 seconds. You’ll need to update your PHP configuration to allow longer requests.

Regards,
Alec Smecher
Public Knowledge Project Team

ferry · February 22, 2018, 1:02am

(Problem Solved)
Thanks all for your help, now i’m able to submit DOI number with crossref export plugin.
so the problem is

I was missing install php5-curl and php-xml extension (thanks to @Vitaliy)
I’m increase request time limit for more than 30 second on my php configuration (thanks to @asmecher)

eddhie · March 21, 2020, 1:32pm

Hi @ferry I got the same problem, ho to solve this problem ?
I have change the time limit, but problem still exist