tumble Posted April 18, 2018 Share Posted April 18, 2018 Very general error. Look around unable to find answer. "Update Message Validation IssueThis update contains notification messages that WHMCS could not validate. Please contact support to know more. I understand, continue with update" Any ideas on how to troubleshoot? Link to comment Share on other sites More sharing options...
itsonlyme Posted April 18, 2018 Share Posted April 18, 2018 it says contact support ? Link to comment Share on other sites More sharing options...
web2008 Posted April 18, 2018 Share Posted April 18, 2018 Try to temporarily switch to PHP 7.0, update and then switch to PHP 7.1/7.2 again. Link to comment Share on other sites More sharing options...
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