Unable to open templates tab in Web Presence Builder: Unexpected server error

Created:

2016-11-16 12:45:50 UTC

Modified:

2017-08-16 18:35:06 UTC

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Unable to open templates tab in Web Presence Builder: Unexpected server error

Applicable to:

  • Web Presence Builder for Windows
  • Plesk 11.x for Linux

Symptoms

Unable to open Design > Templates tab in Web Presence Builder 11.5.6:

Unexpected server error

The following error is shown in /usr/local/psa/admin/logs/sitebuilder.log file:

[EMERG] /sitebuilder/JsonApi/   Base_SyntaxException: PHP Warning : json_encode(): Invalid UTF-8 sequence in argument
file: /usr/local/psa/admin/externals/Zend/Json.php

Cause

This is internal issue that has been fixed in Web Presence Builder 11.5.7.

Resolution

Upgrade Web Presence Builder through Plesk Autoinstaller .

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