CiviCRM Error - type E_ERROR was caused in line 550

Question

I've got a wordpress site using CiviCRM and recently got an alert email indicating a technical issue identified on the site. Error details is listed below. I've googled for similar issues but went nowhere. Wondering if anyone has come across this or similar ? Any advice will be much appreciated.

Error Details

An error of type E_ERROR was caused in line 550 of the file /public_html/wp-content/plugins/civicrm/civicrm/vendor/symfony/filesystem/Filesystem.php. 
Error message: Uncaught Symfony\Component\Filesystem\Exception\IOException: A temporary file could not be created. in /public_html/wp-content/plugins/civicrm/civicrm/vendor/symfony/filesystem/Filesystem.php:550
Stack trace:
#0 /public_html/wp-content/plugins/civicrm/civicrm/vendor/symfony/filesystem/Filesystem.php(598): Symfony\Component\Filesystem\Filesystem->tempnam('/home/...', 'CachedCiviConta...')
#1 /public_html/wp-content/plugins/civicrm/civicrm/vendor/symfony/config/ResourceCheckerConfigCache.php(138): Symfony\Component\Filesystem\Filesystem->dumpFile('/home/...', '

Answer 1

This error is telling you that due to a filesystem (IO) error the system could not save a temporary file.

This could be due to:

• Hardware issues with the storage medium.
• No free disk space available.
• Incorrect/insufficient permissions to save files in the location required.

You should check that the webserver/PHP user has permission to write to the location which will be in the full logs in your installation's ConfigAndLog folder in the CiviCRM files directory.