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.
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/...', '