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SolusVM blank page – How to resolve

by | Jun 2, 2021

Wondering how to resolve SolusVM blank page error? We can help you.

SolusVM is a powerful GUI-based VPS management system which allows you to monitor your VPS status and change basic settings.

Here at Bobcares, we often handle requests from our customers to fix similar SolusVm errors as a part of our Server Management Services.

Today we will see how our support engineers fix this for our customers.


SolusVM blank page error

SolusVM gives a blank page after the 1.20.09 update on CentOS 5 node.

When the PHP version is 5.1.

You can check the PHP version using below command:

# php -v

lighttpd web server serves the requests to Master SolusVM web interface

You can see following error in the error log:

# tail -fn0 /var/log/lighttpd/error.log
2018-12-05 16:41:49: (mod_fastcgi.c.2538) FastCGI-stderr: PHP Fatal error: Call to undefined function json_decode() in /usr/local/solusvm/includes/config.php on line 102

This issue is usually caused as system PHP does not have json module enabled.


How to resolve SolusVM blank page error?

Today, let us see the steps followed by our Support Techs to resolve the issue:

1.Firstly, connect to the Master SolusVM server via SSH

2.Then, update the PHP to the packages by symlink PHP to svmstack PHP using the below command.

# mv /usr/bin/php /usr/bin/backup-php
# ln -s /usr/local/svmstack/php/bin/php /usr/bin/php

3.Switch from lighttpd to svmstack-nginx service:

  • Firstly, install repository
# yum install solusvm-release
  • Then, shutdown lighttpd service
# service lighttpd stop

# chkconfig lighttpd off
  • Then, install nginx and legacy configuration file for master
# yum install svmstack-nginx svmstack-nginx-legacy-master-config
  • Next, install nginx and legacy configuration file for slave
# yum install svmstack-nginx svmstack-nginx-legacy-slave-config
  • Finally, start new service
# service svmstack-nginx restart

# service svmstack-fpm restart


If the issue still persists, try to re-install SoulsVM and reboot following below steps:

SolusVM requires the following specification:

  • CentOS 5+ based linux operating system
  • At least one external IP address
  • To install, in SSH as root do the following:
wget chmod 755 install ./install

In order to reboot,

  1. Login to your SolusVM Control Panel.
  2. Scroll down and you can see a “Reboot” option. Click it!
  3. It will show a confirmation window. Click on “Yes”.


[Still stuck with SolusVM error? We can help you]


In short, today we saw the steps followed by our Support Techs in order to resolve this error.


Never again lose customers to poor server speed! Let us help you.

Our server experts will monitor & maintain your server 24/7 so that it remains lightning fast and secure.


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