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Article ID: 116459, created on Jul 16, 2013, last review on Jul 14, 2018

  • Applies to:
  • Operations Automation


After installation, configuration and setup of Web Presence Builder, customers cannot load Design Templates. The web interface returns the error:

Unable to connect to Parallels Web Presence Builder Server. Please contact your administrator

When you look in the log file of Web Presence Builder server (/var/www/vhosts/1//log/ssl_error_log), the following errors can be found:

PHP Fatal error:  Allowed memory size of 25165824 bytes exhausted (tried to allocate 64 bytes) in

/var/www/vhosts/1/100001/webspace/siteapps/ParallelsPresenceBuilderforPA-1/htdocs/include/SB/ORM/Template.php on line 89



Web Presence Builder needs more memory to load the templates than it is currently allowed to use by the Apache configuration.


  1. Check that the value for memory_limit of the PHP Resource Limits in the Apache Configuration are properly set to 192M as described in the deployment guide.

  2. Check that the Apache Configuration is Applied state.

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