Steps to reproduce:

1. Install the media GLPI using notes provided by Zabbix : https://www.zabbix.com/integrations/glpi
2. Create a GLPI user as described in the documentation

Result:
When I run test webhook, I got the error

00:00:00.030 [Debug] [ GLPi Webhook ] Sending request: http://192.168.124.163/apirest.php/Problem/ {"input":{"name":"

","content":"{ALERT.MESSAGE}\n<a href=http://192.168.124.170/zabbix/>Link to problem in Zabbix</a>","status":1,"urgency":"{EVENT.NSEVERITY}"}}00:00:00.046 [Debug] [ GLPi Webhook ] Received response with status code 20000:00:00.046 [Debug] [ GLPi Webhook ] Failed to parse response received from GLPi00:00:00.046 [Debug] [ GLPi Webhook ] ERROR: Failed to process response received from GLPi. Check debug log for more information.

Does anyone know how to fix it? 

Best regards,