Just upgraded my Test server from PM 3.3 Community Version with PHP 5.6 to PM 3.3.3 and upgraded PHP to PHP 7.1
After the upgrade, I started to get the following error displayed:
Notice: Only variables should be assigned by reference in /opt/processmaker/workflow/engine/plugins/pmRestRequest.php on line 40
Line 40 has the following code:
$oPluginRegistry = &PMPluginRegistry::getSingleton();
if I remove the & before &PMPluginRegistry the error displayed disappears.
Nevertheless all plugins disappeared from the plugins manager in Admin.
Can you help on this?